diff --git a/Ubiquitous/XiZi_IIoT/tool/bootloader/Makefile b/Ubiquitous/XiZi_IIoT/tool/bootloader/Makefile
index 3e0f3289d..b7d9dd5cd 100644
--- a/Ubiquitous/XiZi_IIoT/tool/bootloader/Makefile
+++ b/Ubiquitous/XiZi_IIoT/tool/bootloader/Makefile
@@ -1,4 +1,4 @@
 SRC_DIR :=
-SRC_DIR += flash ota
+SRC_DIR += ota
 
 include $(KERNEL_ROOT)/compiler.mk
\ No newline at end of file
diff --git a/Ubiquitous/XiZi_IIoT/tool/bootloader/flash/Kconfig b/Ubiquitous/XiZi_IIoT/tool/bootloader/flash/Kconfig
deleted file mode 100644
index e69de29bb..000000000
diff --git a/Ubiquitous/XiZi_IIoT/tool/bootloader/flash/Makefile b/Ubiquitous/XiZi_IIoT/tool/bootloader/flash/Makefile
deleted file mode 100644
index 123d7c8b0..000000000
--- a/Ubiquitous/XiZi_IIoT/tool/bootloader/flash/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-SRC_FILES := flash_ops.c
-
-include $(KERNEL_ROOT)/compiler.mk
\ No newline at end of file
diff --git a/Ubiquitous/XiZi_IIoT/tool/bootloader/flash/flash_ops.c b/Ubiquitous/XiZi_IIoT/tool/bootloader/flash/flash_ops.c
deleted file mode 100644
index e69de29bb..000000000