diff --git a/tests/system-test/2-query/irate.py b/tests/system-test/2-query/irate.py
index a64e7695c3e3fa7b27e9288eeef59f1de838db51..408f4b374950be29c0f6df06593fb3b216ff409f 100644
--- a/tests/system-test/2-query/irate.py
+++ b/tests/system-test/2-query/irate.py
@@ -69,7 +69,7 @@ class TDTestCase:
                         comput_irate_value = origin_result[1][0]*1000/( origin_result[1][-1] - origin_result[0][-1])
                     else:
                         comput_irate_value = (origin_result[1][0] - origin_result[0][0])*1000/( origin_result[1][-1] - origin_result[0][-1])
-                    if abs(comput_irate_value - irate_value) <= 0.0000001:
+                    if abs(comput_irate_value - irate_value) <= 0.001:  # set as 0.001 avoid floating point precision calculation errors
                         tdLog.info(" irate work as expected , sql is %s "% irate_sql)
                     else:
                         tdLog.exit(" irate work not as expected , sql is %s "% irate_sql)
diff --git a/tests/system-test/fulltest.sh b/tests/system-test/fulltest.sh
index e9fbba86f950b9d3ece990b63dd759091c0dbd6b..f2256fe2eb03bcf6e5da0f783d434842b72d3b15 100755
--- a/tests/system-test/fulltest.sh
+++ b/tests/system-test/fulltest.sh
@@ -113,7 +113,7 @@ python3 ./test.py -f 2-query/hyperloglog.py -R
 python3 ./test.py -f 2-query/interp.py
 python3 ./test.py -f 2-query/interp.py -R
 python3 ./test.py -f 2-query/irate.py
-# python3 ./test.py -f 2-query/irate.py -R
+python3 ./test.py -f 2-query/irate.py -R
 python3 ./test.py -f 2-query/join.py
 python3 ./test.py -f 2-query/join.py -R
 python3 ./test.py -f 2-query/last_row.py