diff --git a/CHANGELOG.md b/CHANGELOG.md
index 96c96ee..cdd762d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 - Successful callback returns httpCode
 - Fix bug: Network error code httpCode returns no data
 - Fix bug: Height adaptation leads to fixed component height
+- modify memory cache limit and file cache limit
 
 ## 3.2.0-rc.6
 - Support LogUtil to turn off log
diff --git a/library/src/main/ets/cache/FileCache.ets b/library/src/main/ets/cache/FileCache.ets
index 414241d..50a1d92 100644
--- a/library/src/main/ets/cache/FileCache.ets
+++ b/library/src/main/ets/cache/FileCache.ets
@@ -16,7 +16,6 @@ import util from '@ohos.util';
 import { FileUtils } from '../utils/FileUtils';
 import fs from '@ohos.file.fs';
 import { LogUtil } from '../utils/LogUtil';
-import { SparkMD5 } from '../3rd_party/sparkmd5/spark-md5';
 
 const INT_MAX = 2147483647
 /**
@@ -33,24 +32,21 @@ export class FileCache {
   private lruCache: util.LRUCache<string, number>
   private isInited: boolean = false
   private context?: Context
-  readonly defaultMaxSize: number = 512;
-  readonly defaultSize: number = INT_MAX;
-  readonly defaultMaxMemorySize: number = 512 * 1024 * 1024;
-  readonly defaultMemorySize: number = 128 * 1024 * 1024;
+  readonly defaultMaxMemorySize: number = 10 * 1024 * 1024 * 1024;
+  readonly defaultMemorySize: number = 1024 * 1024 * 1024;
 
   constructor(context: Context, size: number, memory: number) {
     if (size <= 0 || size > INT_MAX) {
-      size = this.defaultSize
+      size = INT_MAX;
     }
     if (memory <= 0 || memory > this.defaultMaxMemorySize) {
-      memory = this.defaultMemorySize
+      memory = this.defaultMemorySize;
     }
-
     this.lruCache = new util.LRUCache(size);
-    this.maxMemory = memory
+    this.maxMemory = memory;
     this.currentMemory = 0;
-    this.maxSize = size
-    this.context = context
+    this.maxSize = size;
+    this.context = context;
   }
 
   /**
@@ -204,8 +200,6 @@ export class FileCache {
     for (let i = 0; i < filenames.length; i++) {
       await FileUtils.getInstance().deleteFile(this.path + filenames[i])
     }
-
-    this.isInited = true
   }
 
   size(): number {
diff --git a/library/src/main/ets/cache/MemoryLruCache.ets b/library/src/main/ets/cache/MemoryLruCache.ets
index a9060f7..b6ad5b6 100644
--- a/library/src/main/ets/cache/MemoryLruCache.ets
+++ b/library/src/main/ets/cache/MemoryLruCache.ets
@@ -21,23 +21,23 @@ export class MemoryLruCache implements IMemoryCache {
   currentMemory: number = 0
   maxSize: number = 0
   private lruCache: util.LRUCache<string, ImageKnifeData>
-  readonly defaultMaxSize: number = 4096
-  readonly defaultSize: number = 512
-  readonly defaultMaxMemorySize: number = 1024 * 1024 * 1024
-  readonly defaultMemorySize: number = 128 * 1024 * 1024
+  readonly defaultMaxSize: number = 65536;
+  readonly defaultSize: number = 512;
+  readonly defaultMaxMemorySize: number = 10 * 1024 * 1024 * 1024;
+  readonly defaultMemorySize: number = 1024 * 1024 * 1024;
 
   constructor(size: number, memory: number) {
     if (size <= 0 || size > this.defaultMaxSize) {
-      size = this.defaultSize
+      size = this.defaultSize;
     }
     if (memory <= 0 || memory > this.defaultMaxMemorySize) {
-      memory = this.defaultMemorySize
+      memory = this.defaultMemorySize;
     }
 
     this.lruCache = new util.LRUCache(size);
-    this.maxMemory = memory
-    this.maxSize = size
-    this.currentMemory = 0
+    this.maxMemory = memory;
+    this.maxSize = size;
+    this.currentMemory = 0;
   }
 
   // 添加缓存键值对
@@ -117,7 +117,6 @@ export class MemoryLruCache implements IMemoryCache {
         this.currentMemory -= value.source.getPixelBytesNumber();
         // value.source.release()
       }
-     // LogUtil.info('MemoryCache removeMemorySize: ' + value.source.getPixelBytesNumber() + ' currentMemory：' + this.currentMemory)
     }
   }