diff --git a/couler/core/proto_repr.py b/couler/core/proto_repr.py
index 4aa785b3..40b80c8b 100644
--- a/couler/core/proto_repr.py
+++ b/couler/core/proto_repr.py
@@ -62,6 +62,7 @@ def step_repr(
     secret=None,
     action=None,
     volume_mounts=None,
+    cache=None,
 ):
     assert step_name is not None
     assert tmpl_name is not None
@@ -80,6 +81,11 @@ def step_repr(
             pb_secret.key = k
             pb_secret.name = secret.name
 
+    if cache is not None:
+        pb_step.cache.name = cache.name
+        pb_step.cache.key = cache.key
+        pb_step.cache.max_age = cache.max_age
+
     # image can be None if manifest specified.
     if image is not None:
         pb_step.container_spec.image = image
diff --git a/couler/core/run_templates.py b/couler/core/run_templates.py
index d477056c..bafb6631 100644
--- a/couler/core/run_templates.py
+++ b/couler/core/run_templates.py
@@ -188,6 +188,7 @@ def run_script(
             env=env,
             resources=resources,
             volume_mounts=volume_mounts,
+            cache=cache,
         )
         proto_repr.add_deps_to_step(step_name)
     return rets
@@ -340,6 +341,7 @@ def run_container(
             resources=resources,
             secret=states.get_secret(secret),
             volume_mounts=volume_mounts,
+            cache=cache,
         )
         proto_repr.add_deps_to_step(step_name)
     return rets
@@ -441,12 +443,15 @@ def run_job(
             action=action,
             success_cond=success_condition,
             failure_cond=failure_condition,
+            cache=cache,
         )
         proto_repr.add_deps_to_step(step_name)
     return rets
 
 
-def run_canned_step(name, args, inputs=None, outputs=None, step_name=None):
+def run_canned_step(
+    name, args, inputs=None, outputs=None, step_name=None, cache=None
+):
     func_name, caller_line = utils.invocation_location()
     func_name = (
         utils.argo_safe_name(step_name) if step_name is not None else func_name
@@ -457,6 +462,7 @@ def run_canned_step(name, args, inputs=None, outputs=None, step_name=None):
     tmpl_args = []
     if states._outputs_tmp is not None:
         tmpl_args.extend(states._outputs_tmp)
+    pb_step = None
     if proto_repr:
         pb_step = proto_repr.step_repr(  # noqa: F841
             input=inputs,
@@ -466,6 +472,7 @@ def run_canned_step(name, args, inputs=None, outputs=None, step_name=None):
             step_name=step_name,
             tmpl_name=step_name + "-tmpl",
             args=tmpl_args,
+            cache=cache,
         )
         proto_repr.add_deps_to_step(step_name)
     return pb_step
diff --git a/couler/tests/proto_repr_test.py b/couler/tests/proto_repr_test.py
index dfb5149b..7d4982d5 100644
--- a/couler/tests/proto_repr_test.py
+++ b/couler/tests/proto_repr_test.py
@@ -35,12 +35,18 @@ def echo():
             image="docker/whalesay:latest",
             source=echo,
             resources={"cpu": "2", "memory": "1Gi"},
+            cache=couler.Cache(
+                name="cache-name", key="cache-key", max_age="60s"
+            ),
         )
         proto_wf = get_default_proto_workflow()
         s = proto_wf.steps[0].steps[0]
         self.assertFalse(s.HasField("resource_spec"))
         self.assertEqual(s.script, '\nprint("echo")\n')
         self.assertEqual(s.container_spec.resources["cpu"], "2")
+        self.assertEqual(s.cache.name, "cache-name")
+        self.assertEqual(s.cache.key, "cache-key")
+        self.assertEqual(s.cache.max_age, "60s")
 
     def test_canned_step(self):
         couler.run_canned_step(name="test", args={"k1": "v1", "k2": "v2"})