diff --git a/changelogs/fragments/1390-update-docstring-zos_tso_command.yml b/changelogs/fragments/1390-update-docstring-zos_tso_command.yml
new file mode 100644
index 000000000..3214e07e5
--- /dev/null
+++ b/changelogs/fragments/1390-update-docstring-zos_tso_command.yml
@@ -0,0 +1,3 @@
+trivial:
+  - zos_tso_command - Updated docstrings to numpy style for visual aid to developers.
+    (https://github.com/ansible-collections/ibm_zos_core/pull/1390).
\ No newline at end of file
diff --git a/plugins/modules/zos_tso_command.py b/plugins/modules/zos_tso_command.py
index 6c2cb6ef6..a04b516ea 100644
--- a/plugins/modules/zos_tso_command.py
+++ b/plugins/modules/zos_tso_command.py
@@ -135,6 +135,23 @@
 
 
 def run_tso_command(commands, module, max_rc):
+    """Run tso command.
+
+    Parameters
+    ----------
+    commands : str
+        Commands to run.
+    module : AnsibleModule
+        Ansible module to run the command with.
+    max_rc : int
+        Max return code.
+
+    Returns
+    -------
+    Union[dict]
+        The command result details.
+
+    """
     script = """/* REXX */
 PARSE ARG cmd
 address tso
@@ -152,6 +169,24 @@ def run_tso_command(commands, module, max_rc):
 
 
 def copy_rexx_and_run_commands(script, commands, module, max_rc):
+    """Copy rexx and run commands
+
+    Parameters
+    ----------
+    script : str
+        Script to run the command.
+    commands : str
+        Commands to run.
+    module : AnsibleModule
+        Ansible module to run the command with.
+    max_rc : int
+        Max return code.
+
+    Returns
+    -------
+    Union[dict]
+        The command result details.
+    """
     command_detail_json = []
     delete_on_close = True
     tmp_file = NamedTemporaryFile(delete=delete_on_close)
@@ -180,6 +215,25 @@ def copy_rexx_and_run_commands(script, commands, module, max_rc):
 
 
 def list_or_str_type(contents, dependencies):
+    """Checks if a variable contains a string or a list of strings and returns it as a list of strings.
+
+    Parameters
+    ----------
+    contents : str | list[str]
+        String or list of strings.
+    dependencies
+        Unused.
+
+    Returns
+    -------
+    str | Union[str]
+        The parameter given as a list of strings.
+
+    Raises
+    ------
+    ValueError
+        Invalid argument type. Expected "string or list of strings".
+    """
     failed = False
     if isinstance(contents, list):
         for item in contents:
@@ -200,6 +254,17 @@ def list_or_str_type(contents, dependencies):
 
 
 def run_module():
+    """Initialize module.
+
+    Raises
+    ------
+    fail_json
+        ValueError on BetterArgParser.
+    fail_json
+        Some command(s) failed.
+    fail_json
+        An unexpected error occurred.
+    """
     module_args = dict(
         commands=dict(type="raw", required=True, aliases=["command"]),
         max_rc=dict(type="int", required=False, default=0),