diff --git a/doc/pic/arch/dubbo-go-arch.pptx b/doc/pic/arch/dubbo-go-arch.pptx
deleted file mode 100644
index 569e6e57fdacd04ecb88f2a11d370fd2d21fee44..0000000000000000000000000000000000000000
Binary files a/doc/pic/arch/dubbo-go-arch.pptx and /dev/null differ