diff --git a/tools/taos-tools/inc/bench.h b/tools/taos-tools/inc/bench.h
index 4dd19d83b9..4f41abb903 100644
--- a/tools/taos-tools/inc/bench.h
+++ b/tools/taos-tools/inc/bench.h
@@ -783,6 +783,7 @@ typedef struct SArguments_S {
     bool                mistMode;
     bool                escape_character;
     bool                pre_load_tb_meta;
+    bool                bind_vgroup;
 
     char*               output_path;
     char                output_path_buf[MAX_PATH_LEN];
@@ -792,8 +793,8 @@ typedef struct SArguments_S {
     long                csv_ts_intv_secs;
     bool                csv_output_header;
     bool                csv_tbname_alias;
+    CsvCompressionLevel csv_compress_level;
 
-    bool                bind_vgroup;
 } SArguments;
 
 typedef struct SBenchConn {
diff --git a/tools/taos-tools/inc/benchCsv.h b/tools/taos-tools/inc/benchCsv.h
index c522a12c50..2db2ec324e 100644
--- a/tools/taos-tools/inc/benchCsv.h
+++ b/tools/taos-tools/inc/benchCsv.h
@@ -16,7 +16,8 @@
 #ifndef INC_BENCHCSV_H_
 #define INC_BENCHCSV_H_
 
-#include <bench.h>
+#include <zlib.h>
+#include "bench.h"
 
 
 typedef enum {
@@ -26,6 +27,29 @@ typedef enum {
     CSV_NAMING_B_THREAD_TIME_SLICE
 } CsvNamingType;
 
+typedef enum {
+    CSV_COMPRESS_NONE       = 0,
+    CSV_COMPRESS_FAST       = 1,
+    CSV_COMPRESS_BALANCE    = 6,
+    CSV_COMPRESS_BEST       = 9
+} CsvCompressionLevel;
+
+typedef enum {
+    CSV_ERR_OK = 0,
+    CSV_ERR_OPEN_FAILED,
+    CSV_ERR_WRITE_FAILED
+} CsvIoError;
+
+typedef struct {
+    const char* filename;
+    CsvCompressionLevel compress_level;
+    CsvIoError result;
+    union {
+        gzFile  gf;
+        FILE*   fp;
+    } handle;
+} CsvFileHandle;
+
 typedef struct {
     char*           buf;
     int             length;
diff --git a/tools/taos-tools/src/benchCsv.c b/tools/taos-tools/src/benchCsv.c
index f1aacaec66..97a1a74c0f 100644
--- a/tools/taos-tools/src/benchCsv.c
+++ b/tools/taos-tools/src/benchCsv.c
@@ -280,6 +280,15 @@ static void csvUpdateSliceRange(CsvWriteMeta* write_meta, CsvThreadMeta* thread_
 }
 
 
+static const char* csvGetGzipFilePrefix() {
+    if (g_arguments->csv_compress_level == CSV_COMPRESS_NONE) {
+        return "";
+    } else {
+        return ".gz"
+    }
+}
+
+
 static int csvGetFileFullname(CsvWriteMeta* write_meta, CsvThreadMeta* thread_meta, char* fullname, size_t size) {
     char thread_buf[SMALL_BUFF_LEN];
     char start_time_buf[MIDDLE_BUFF_LEN];
@@ -287,28 +296,29 @@ static int csvGetFileFullname(CsvWriteMeta* write_meta, CsvThreadMeta* thread_me
     int ret = -1;
     const char* base_path   = g_arguments->output_path;
     const char* file_prefix = g_arguments->csv_file_prefix;
+    const char* gzip_suffix = csvGetGzipFilePrefix();
 
     switch (meta->naming_type) {
         case CSV_NAMING_I_SINGLE: {
-            ret = snprintf(fullname, size, "%s%s.csv", base_path, file_prefix);
+            ret = snprintf(fullname, size, "%s%s.csv%s", base_path, file_prefix, g_arguments->csv_compress_level, gzip_suffix);
             break;
         }
         case CSV_NAMING_I_TIME_SLICE: {
             csvConvertTime2String(meta->start_secs, start_time_buf, sizeof(start_time_buf));
             csvConvertTime2String(meta->end_secs, end_time_buf, sizeof(end_time_buf));
-            ret = snprintf(fullname, size, "%s%s_%s_%s.csv", base_path, file_prefix, start_time_buf, end_time_buf);
+            ret = snprintf(fullname, size, "%s%s_%s_%s.csv%s", base_path, file_prefix, start_time_buf, end_time_buf, gzip_suffix);
             break;
         }
         case CSV_NAMING_B_THREAD: {
             (void)snprintf(thread_buf, sizeof(thread_buf), meta->thread_formatter, meta->thread_id);
-            ret = snprintf(fullname, size, "%s%s_%s.csv", base_path, file_prefix, thread_buf);
+            ret = snprintf(fullname, size, "%s%s_%s.csv%s", base_path, file_prefix, thread_buf, gzip_suffix);
             break;
         }
         case CSV_NAMING_B_THREAD_TIME_SLICE: {
             (void)snprintf(thread_buf, sizeof(thread_buf), meta->thread_formatter, meta->thread_id);
             csvConvertTime2String(meta->start_secs, start_time_buf, sizeof(start_time_buf));
             csvConvertTime2String(meta->end_secs, end_time_buf, sizeof(end_time_buf));
-            ret = snprintf(fullname, size, "%s%s_%s_%s_%s.csv", base_path, file_prefix, thread_buf, start_time_buf, end_time_buf);
+            ret = snprintf(fullname, size, "%s%s_%s_%s_%s.csv%s", base_path, file_prefix, thread_buf, start_time_buf, end_time_buf, gzip_suffix);
             break;
         }
         default: {
@@ -463,14 +473,91 @@ static void csvFreeCtbTagData(CsvThreadMeta* thread_meta, CsvRowTagsBuf* tags_bu
 }
 
 
-static int csvWriteFile(FILE* fp, uint64_t ctb_idx, int64_t cur_ts, int64_t* ck, CsvWriteMeta* write_meta, CsvThreadMeta* thread_meta) {
+static CsvFileHandle* csvOpen(const char* filename, CsvCompressionLevel compress_level) {
+    CsvFileHandle* fhdl = NULL;
+    bool failed = false;
+    
+    fhdl = (CsvFileHandle*)benchCalloc(1, sizeof(CsvFileHandle), false);
+    if (!fhdl) {
+        errorPrint("Failed to malloc csv file handle. filename: %s, compress level: %d.\n",
+                filename, compress_level);
+        return NULL;
+    }
+
+    if (compress_level == CSV_COMPRESS_NONE) {
+        fhdl.handle.fp = fopen(filename, "w");
+        failed = (!fhdl.handle.fp);
+    } else {
+        char mode[TINY_BUFF_LEN];
+        (void)snprintf(mode, sizeof(mode), "wb%d", compress_level);
+        fhdl.handle.gf = gzopen(filename, mode);
+        failed = (!fhdl.handle.gf);
+    }
+
+    if (failed) {
+        tmfree(fhdl);
+        errorPrint("Failed to open csv file handle. filename: %s, compress level: %d.\n",
+                filename, compress_level);
+        return NULL;
+    } else {
+        fhdl->filename = filename;
+        fhdl->compress_level = compress_level;
+        fhdl->result = CSV_ERR_OK;
+        return fhdl;
+    }
+}
+
+
+static CsvIoError csvWrite(CsvFileHandle* fhdl, const char* buf, size_t size) {
+    if (fhdl->compress_level == CSV_COMPRESS_NONE) {
+        size_t ret = fwrite(buf, 1, size, fhdl->handle.fp);
+        if (ret != size) {
+            errorPrint("Failed to write csv file: %s. expected written %zu but %zu.\n",
+                    fhdl->filename, size, ret);
+            if (ferror(fhdl->handle.fp)) {
+                perror("error");
+            }
+            fhdl->result = CSV_ERR_WRITE_FAILED;
+            return CSV_ERR_WRITE_FAILED;
+        }
+    } else {
+        unsigned int ret = gzwrite(fhdl->handle.gf, buf, size);
+        if (ret != size) {
+            errorPrint("Failed to write csv file: %s. expected written %zu but %zu.\n",
+                    fhdl->filename, size, ret);
+            int errnum;
+            const char* errmsg = gzerror(fhdl->handle.gf, &errnum);
+            errorPrint("gzwrite error: %s\n", errmsg);
+            fhdl->result = CSV_ERR_WRITE_FAILED;
+            return CSV_ERR_WRITE_FAILED;
+        }
+    }
+    return CSV_ERR_OK;
+}
+
+
+static void csvClose(CsvFileHandle* fhdl) {
+    if (fhdl->compress_level == CSV_COMPRESS_NONE) {
+        if (fhdl->handle.fp) {
+            fclose(fhdl->handle.fp);
+            fhdl->handle.fp = NULL;
+        }
+    } else {
+        if (fhdl->handle.gf) {
+            gzclose(fhdl->handle.gf);
+            fhdl->handle.gf = NULL;
+        }
+    }
+}
+
+
+static int csvWriteFile(CsvFileHandle* fhdl, uint64_t ctb_idx, int64_t cur_ts, int64_t* ck, CsvWriteMeta* write_meta, CsvThreadMeta* thread_meta) {
     SDataBase*   db  = write_meta->db;
     SSuperTable* stb = write_meta->stb;
     CsvRowTagsBuf* tags_buf_bucket = thread_meta->tags_buf_bucket;
     CsvRowColsBuf* tags_buf        = &tags_buf_bucket[ctb_idx];
     CsvRowColsBuf* cols_buf        = thread_meta->cols_buf;
-    int ret         = 0;
-    size_t written  = 0;
+    int ret = 0;
 
 
     ret = csvGenRowColData(cols_buf->buf, cols_buf->buf_size, stb, cur_ts, db->precision, ck);
@@ -484,23 +571,37 @@ static int csvWriteFile(FILE* fp, uint64_t ctb_idx, int64_t cur_ts, int64_t* ck,
 
     // write header
     if (thread_meta->output_header) {
-        written = fwrite(write_meta->csv_header, 1, write_meta->csv_header_length, fp);
+        ret = csvWrite(fhdl, write_meta->csv_header, write_meta->csv_header_length);
+        if (ret != CSV_ERR_OK) {
+            errorPrint("Failed to write csv header data. database: %s, super table: %s, naming type: %d, thread index: %d, ctb index: %" PRIu64 ".\n",
+                    db->dbName, stb->stbName, write_meta->naming_type, thread_meta->thread_id, ctb_idx);
+            return -1;
+        }
+
         thread_meta->output_header = false;
     }
 
     // write columns
-    written = fwrite(cols_buf->buf, 1, cols_buf->length, fp);
-    if (written != cols_buf->length) {
+    ret = csvWrite(fhdl, cols_buf->buf, cols_buf->length);
+    if (ret != CSV_ERR_OK) {
         errorPrint("Failed to write csv column data, expected written %d but got %zu. database: %s, super table: %s, naming type: %d, thread index: %d, ctb index: %" PRIu64 ".\n",
-                cols_buf->length, written, db->dbName, stb->stbName, write_meta.naming_type, thread_meta->thread_id, ctb_idx);
+                db->dbName, stb->stbName, write_meta->naming_type, thread_meta->thread_id, ctb_idx);
         return -1;
     }
 
     // write tags
-    written = fwrite(tags_buf->buf, 1, tags_buf->length, fp);
-    if (written != tags_buf->length) {
-        errorPrint("Failed to write csv tag data, expected written %d but got %zu. database: %s, super table: %s, naming type: %d, thread index: %d, ctb index: %" PRIu64 ".\n",
-                tags_buf->length, written, db->dbName, stb->stbName, write_meta.naming_type, thread_meta->thread_id, ctb_idx);
+    ret = csvWrite(fhdl, tags_buf->buf, tags_buf->length);
+    if (ret != CSV_ERR_OK) {
+        errorPrint("Failed to write csv tag data. database: %s, super table: %s, naming type: %d, thread index: %d, ctb index: %" PRIu64 ".\n",
+                db->dbName, stb->stbName, write_meta->naming_type, thread_meta->thread_id, ctb_idx);
+        return -1;
+    }
+
+    // write line break
+    ret = csvWrite(fhdl, "\n", 1);
+    if (ret != CSV_ERR_OK) {
+        errorPrint("Failed to write csv line break data. database: %s, super table: %s, naming type: %d, thread index: %d, ctb index: %" PRIu64 ".\n",
+                db->dbName, stb->stbName, write_meta->naming_type, thread_meta->thread_id, ctb_idx);
         return -1;
     }
 
@@ -523,7 +624,7 @@ static void* csvGenStbThread(void* arg) {
     int64_t  ck                 = 0;
     uint64_t ctb_idx            = 0;        
     int      ret                = 0;
-    FILE*    fp                 = NULL;
+    CsvFileHandle*    fhdl      = NULL;
     char fullname[MAX_PATH_LEN] = {};
 
 
@@ -565,8 +666,8 @@ static void* csvGenStbThread(void* arg) {
         }
 
         // create fd
-        fp = fopen(fullname, "w");
-        if (fp == NULL) {
+        fhdl = csvOpen(fullname, g_arguments->csv_compress_level);
+        if (fhdl == NULL) {
             errorPrint("Failed to create csv file. thread index: %d, file: %s, errno: %d, strerror: %s.\n",
                     thread_meta->thread_id, fullname, errno, strerror(errno));
             goto end;
@@ -583,11 +684,11 @@ static void* csvGenStbThread(void* arg) {
 
             for (ctb_idx = 0; ctb_idx < thread_meta->ctb_count; ++ctb_idx) {
                 for (slice_ctb_cur_ts = slice_cur_ts; slice_ctb_cur_ts < slice_batch_ts; slice_ctb_cur_ts += write_meta->stb->timestamp_step) {
-                    ret = csvWriteFile(fp, ctb_idx, slice_ctb_cur_ts, &ck, write_meta, thread_meta);
+                    ret = csvWriteFile(fhdl, ctb_idx, slice_ctb_cur_ts, &ck, write_meta, thread_meta);
                     if (!ret) {
                         errorPrint("Failed to write csv file. thread index: %d, file: %s, errno: %d, strerror: %s.\n",
                                 thread_meta->thread_id, fullname, errno, strerror(errno));
-                        fclose(fp);
+                        csvClose(fhdl);
                         goto end;
                     }
 
@@ -598,7 +699,7 @@ static void* csvGenStbThread(void* arg) {
             slice_cur_ts = slice_batch_ts;
         }
 
-        fclose(fp);
+        csvClose(fhdl);
         csvUpdateSliceRange(write_meta, thread_meta, last_end_ts);
     }
 
diff --git a/tools/taos-tools/src/benchJsonOpt.c b/tools/taos-tools/src/benchJsonOpt.c
index 4cf690204e..26c6200157 100644
--- a/tools/taos-tools/src/benchJsonOpt.c
+++ b/tools/taos-tools/src/benchJsonOpt.c
@@ -14,6 +14,7 @@
 #include <sys/stat.h>
 #include <bench.h>
 #include "benchLog.h"
+#include "benchCsv.h"
 
 extern char      g_configDir[MAX_PATH_LEN];
 
@@ -1636,6 +1637,22 @@ static int getMetaFromCommonJsonFile(tools_cJSON *json) {
         g_arguments->csv_tbname_alias = "device_id";
     }
 
+    // csv compression level
+    tools_cJSON* cl = tools_cJSON_GetObjectItem(json, "csv_compress_level");
+    if (cl && cl->type == tools_cJSON_String && cl->valuestring != NULL) {
+        if (0 == strcasecmp(cl->valuestring, "none")) {
+            g_arguments->csv_compress_level = CSV_COMPRESS_NONE;
+        } else if (0 == strcasecmp(cl->valuestring, "fast")) {
+            g_arguments->csv_compress_level = CSV_COMPRESS_FAST;
+        } else if (0 == strcasecmp(cl->valuestring, "balance")) {
+            g_arguments->csv_compress_level = CSV_COMPRESS_BALANCE;
+        } else if (0 == strcasecmp(cl->valuestring, "best")) {
+            g_arguments->csv_compress_level = CSV_COMPRESS_BEST;
+        }
+    } else {
+        g_arguments->csv_compress_level = CSV_COMPRESS_NONE;
+    }
+
     code = 0;
     return code;
 }