diff --git a/BL808Image.bt b/BL808Image.bt
index 044e862a73544fca47b15da597fcaa7757935eb5..f82e45e9f7635f67bbb836b0e7451152044f5c53 100644
--- a/BL808Image.bt
+++ b/BL808Image.bt
@@ -275,6 +275,34 @@ if(BootHeader.basicCfg.img_len_cnt < FileSize() &&
     BootHeader.basicCfg.img_len_cnt + BootHeader.basicCfg.group_image_offset <= FileSize()) {
     FSeek(BootHeader.basicCfg.group_image_offset);
     ubyte image[BootHeader.basicCfg.img_len_cnt]   <comment="Image data",fgcolor=cDkAqua>;
+    local char s[64 + 1];
+    local int ret = ChecksumAlgStr(CHECKSUM_SHA256, s, startof(image),sizeof(image));
+    if(ret) {
+        local char ChecksumAlgStrResult[64 + 1];
+        for (i = 0; i < 8; i++) {
+            ChecksumAlgStrResult[i * 8 + 1] = (char)(BootHeader.basicCfg.hash[i] & 0xF);
+            ChecksumAlgStrResult[i * 8 + 0] = (char)((BootHeader.basicCfg.hash[i] >> 4) & 0xF);
+            ChecksumAlgStrResult[i * 8 + 3] = (char)((BootHeader.basicCfg.hash[i] >> 8) & 0xF);
+            ChecksumAlgStrResult[i * 8 + 2] = (char)((BootHeader.basicCfg.hash[i] >> 12) & 0xF);
+            ChecksumAlgStrResult[i * 8 + 5] = (char)((BootHeader.basicCfg.hash[i] >> 16) & 0xF);
+            ChecksumAlgStrResult[i * 8 + 4] = (char)((BootHeader.basicCfg.hash[i] >> 20) & 0xF);
+            ChecksumAlgStrResult[i * 8 + 7] = (char)((BootHeader.basicCfg.hash[i] >> 24) & 0xF);
+            ChecksumAlgStrResult[i * 8 + 6] = (char)((BootHeader.basicCfg.hash[i] >> 28) & 0xF);
+        }
+        for (i = 0; i < 64; i++) {
+            if (ChecksumAlgStrResult[i] >= 10) {
+                ChecksumAlgStrResult[i] = ChecksumAlgStrResult[i] + 'A' - 10;
+            } else {
+                ChecksumAlgStrResult[i] += '0';
+            }
+        }
+        ChecksumAlgStrResult[64] = '\0';
+        if(Strcmp(s, ChecksumAlgStrResult)) {
+            Warning("invalid sha256 for the image!");
+        }
+    } else {
+        Warning("hash check for the image failure");
+    }
 } else {
     Warning("Segment data appears to either overlap with header, exist after the end of the file or overlap with the end of the file!");
 }