diff --git a/tools/tcat_ble_client/cli/__init__.py b/tools/tcat_ble_client/cli/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/tools/tcat_ble_client/cli/cli.py b/tools/tcat_ble_client/cli/cli.py
index 34ff977a7..6f397f6a2 100644
--- a/tools/tcat_ble_client/cli/cli.py
+++ b/tools/tcat_ble_client/cli/cli.py
@@ -33,6 +33,7 @@ from cli.base_commands import (DisconnectCommand, HelpCommand, HelloCommand, Com
                                GetDeviceIdCommand, GetPskdHash, GetExtPanIDCommand, GetNetworkNameCommand,
                                GetProvisioningUrlCommand, PingCommand, GetRandomNumberChallenge, ThreadStateCommand,
                                ScanCommand, PresentHash)
+from .tlv_commands import TlvCommand
 from cli.dataset_commands import (DatasetCommand)
 from dataset.dataset import ThreadDataset
 from typing import Optional
@@ -61,6 +62,7 @@ class CLI:
             'random_challenge': GetRandomNumberChallenge(),
             'present_hash': PresentHash(),
             'peer_pskd_hash': GetPskdHash(),
+            'tlv': TlvCommand()
         }
         self._context = {
             'ble_sstream': ble_sstream,
diff --git a/tools/tcat_ble_client/cli/tlv_commands.py b/tools/tcat_ble_client/cli/tlv_commands.py
new file mode 100644
index 000000000..3beb985e0
--- /dev/null
+++ b/tools/tcat_ble_client/cli/tlv_commands.py
@@ -0,0 +1,74 @@
+"""
+  Copyright (c) 2024, The OpenThread Authors.
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+  3. Neither the name of the copyright holder nor the
+     names of its contributors may be used to endorse or promote products
+     derived from this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+  POSSIBILITY OF SUCH DAMAGE.
+"""
+
+from .base_commands import BleCommand, CommandResultNone, Command
+from tlv.tlv import TLV
+from tlv.tcat_tlv import TcatTLVType
+
+
+class TlvCommandList(Command):
+
+    def get_help_string(self) -> str:
+        return 'List available TLV types to use in \'tlv send\'.'
+
+    async def execute_default(self, args, context):
+        list_tlv = "\n".join([f"{tlv.value:#x}\t{tlv.name}" for tlv in TcatTLVType])
+        print(f"\n{list_tlv}")
+        return CommandResultNone()
+
+
+class TlvCommandSend(BleCommand):
+
+    def get_log_string(self) -> str:
+        pass
+
+    def get_help_string(self) -> str:
+        return 'Send TLV with arbitrary payload: \'tlv send <TLV_TYPE> <TLV_PAYLOAD>\'.'
+
+    def prepare_data(self, args, context):
+        tlv_type = TcatTLVType(int(args[0], 16))
+        tlv_value = bytes()
+        try:
+            tlv_value = bytes.fromhex(args[1])
+        except IndexError:
+            pass
+        data = TLV(tlv_type.value, tlv_value).to_bytes()
+        return data
+
+
+class TlvCommand(Command):
+
+    def __init__(self):
+        self._subcommands = {'list': TlvCommandList(), 'send': TlvCommandSend()}
+
+    def get_help_string(self) -> str:
+        return 'Send TLV with arbitrary payload.'
+
+    async def execute_default(self, args, context):
+        self.print_help()
+        return CommandResultNone()