diff --git a/google/cloud/spanner_v1/data_types.py b/google/cloud/spanner_v1/data_types.py
index 130603afa9..63897b293c 100644
--- a/google/cloud/spanner_v1/data_types.py
+++ b/google/cloud/spanner_v1/data_types.py
@@ -38,6 +38,11 @@ def __init__(self, *args, **kwargs):
             self._array_value = args[0]
             return
 
+        if len(args) and isinstance(args[0], JsonObject):
+            self._is_array = args[0]._is_array
+            if self._is_array:
+                self._array_value = args[0]._array_value
+
         if not self._is_null:
             super(JsonObject, self).__init__(*args, **kwargs)
 
diff --git a/tests/unit/test_datatypes.py b/tests/unit/test_datatypes.py
new file mode 100644
index 0000000000..60630f73d3
--- /dev/null
+++ b/tests/unit/test_datatypes.py
@@ -0,0 +1,45 @@
+# Copyright 2024 Google LLC All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+import unittest
+
+import json
+from google.cloud.spanner_v1.data_types import JsonObject
+
+
+class Test_JsonObject_serde(unittest.TestCase):
+    def test_w_dict(self):
+        data = {"foo": "bar"}
+        expected = json.dumps(data, sort_keys=True, separators=(",", ":"))
+        data_jsonobject = JsonObject(data)
+        self.assertEqual(data_jsonobject.serialize(), expected)
+
+    def test_w_list_of_dict(self):
+        data = [{"foo1": "bar1"}, {"foo2": "bar2"}]
+        expected = json.dumps(data, sort_keys=True, separators=(",", ":"))
+        data_jsonobject = JsonObject(data)
+        self.assertEqual(data_jsonobject.serialize(), expected)
+
+    def test_w_JsonObject_of_dict(self):
+        data = {"foo": "bar"}
+        expected = json.dumps(data, sort_keys=True, separators=(",", ":"))
+        data_jsonobject = JsonObject(JsonObject(data))
+        self.assertEqual(data_jsonobject.serialize(), expected)
+
+    def test_w_JsonObject_of_list_of_dict(self):
+        data = [{"foo1": "bar1"}, {"foo2": "bar2"}]
+        expected = json.dumps(data, sort_keys=True, separators=(",", ":"))
+        data_jsonobject = JsonObject(JsonObject(data))
+        self.assertEqual(data_jsonobject.serialize(), expected)