diff --git a/ironic/drivers/modules/irmc/common.py b/ironic/drivers/modules/irmc/common.py
index 0027bab974..24adf0da8d 100644
--- a/ironic/drivers/modules/irmc/common.py
+++ b/ironic/drivers/modules/irmc/common.py
@@ -20,6 +20,7 @@ from oslo_utils import importutils
 
 from ironic.common import exception
 from ironic.common.i18n import _
+from ironic.common import utils
 from ironic.conf import CONF
 
 scci = importutils.try_import('scciclient.irmc.scci')
@@ -84,6 +85,8 @@ def parse_driver_info(node):
     opt = {param: info.get(param, CONF.irmc.get(param[len('irmc_'):]))
            for param in OPTIONAL_PROPERTIES}
     d_info = dict(req, **opt)
+    d_info['irmc_port'] = utils.validate_network_port(
+        d_info['irmc_port'], 'irmc_port')
 
     error_msgs = []
     if (d_info['irmc_auth_method'].lower() not in ('basic', 'digest')):
diff --git a/ironic/tests/unit/db/utils.py b/ironic/tests/unit/db/utils.py
index 0e60b1fa54..e2eae83cc8 100644
--- a/ironic/tests/unit/db/utils.py
+++ b/ironic/tests/unit/db/utils.py
@@ -105,7 +105,7 @@ def get_test_irmc_info():
         "irmc_address": "1.2.3.4",
         "irmc_username": "admin0",
         "irmc_password": "fake0",
-        "irmc_port": 80,
+        "irmc_port": "80",
         "irmc_auth_method": "digest",
     }
 
diff --git a/releasenotes/notes/irmc-convert-the-value-of-irmc-port-63c90450b5a77203.yaml b/releasenotes/notes/irmc-convert-the-value-of-irmc-port-63c90450b5a77203.yaml
new file mode 100644
index 0000000000..2a06a271df
--- /dev/null
+++ b/releasenotes/notes/irmc-convert-the-value-of-irmc-port-63c90450b5a77203.yaml
@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fix the bug caused by not converting the port value to int type
+    when the node managed by the `irmc` hardware type.