diff --git a/tests/ut/ge/common/format_transfer_fracz_hwcn_unittest.cc b/tests/ut/ge/common/format_transfer_fracz_hwcn_unittest.cc
index 25caa741..6217c813 100644
--- a/tests/ut/ge/common/format_transfer_fracz_hwcn_unittest.cc
+++ b/tests/ut/ge/common/format_transfer_fracz_hwcn_unittest.cc
@@ -6897,5 +6897,20 @@ TEST_F(UtestFormatTransferFracZHwcn, fp16_1c_1n_pad_cn) {
     EXPECT_EQ((reinterpret_cast<uint16_t *>(result.data.get()))[i], ret[i]);
   }
 }
+TEST_F(UtestFormatTransferFracZHwcn, fracz_to_hwcn_fp16_success_with_groups) {
+  uint16_t data_4d[2 * 2 * 2 * 2] = {1};
+  uint16_t data[1 * 1 * 1 * 2 *2 * 16 *16] = {1024};
+  int64_t groups = 1;
+  TransArgs args{
+      reinterpret_cast<uint8_t *>(data_4d), FORMAT_FRACTAL_Z, FORMAT_HWCN, {1, 1, 1, 2, 2, 16, 6}, {2, 2, 2, 2}, DT_FLOAT16 ,groups};
+  TransResult result;
+
+  FormatTransferFracZHwcn transfer;
+  EXPECT_EQ(transfer.TransFormat(args, result), SUCCESS);
+  EXPECT_EQ(result.length, sizeof(data));
+  for (int i = 0; i < sizeof(data) / sizeof(data[0]); ++i) {
+    EXPECT_EQ((reinterpret_cast<uint16_t *>(result.data.get()))[i], data[i]);
+  }
+}
 }  // namespace formats
 }  // namespace ge