diff --git a/epmet-user/epmet-user-server/src/main/resources/db/migration/V0.0.76__alter_ic_nat.sql b/epmet-user/epmet-user-server/src/main/resources/db/migration/V0.0.76__alter_ic_nat.sql
new file mode 100644
index 0000000000..4c58646746
--- /dev/null
+++ b/epmet-user/epmet-user-server/src/main/resources/db/migration/V0.0.76__alter_ic_nat.sql
@@ -0,0 +1,3 @@
+alter table ic_nat add COLUMN `SAMPLE_TIME` datetime COMMENT '采样时间'after ID_CARD;
+
+ALTER TABLE ic_nat MODIFY COLUMN NAT_TIME datetime COMMENT '检测时间，精确到分钟';
\ No newline at end of file