diff --git a/tools/otci/otci/otci.py b/tools/otci/otci/otci.py
index 46a21eb3f..90097956c 100644
--- a/tools/otci/otci/otci.py
+++ b/tools/otci/otci/otci.py
@@ -2148,13 +2148,136 @@ class OTCI(object):
     #
     # Link metrics management
     #
-    # TODO: linkmetrics mgmt <ipaddr> forward <seriesid> [ldraX][pqmr]
-    # TODO: linkmetrics probe <ipaddr> <seriesid> <length>
-    # TODO: linkmetrics query <ipaddr> single [pqmr]
-    # TODO: linkmetrics query <ipaddr> forward <seriesid>
-    # TODO: linkquality <extaddr>
-    # TODO: linkquality <extaddr> <linkquality>
-    #
+
+    def linkmetrics_config_enhanced_ack_clear(self, peer_addr: Union[str, Ip6Addr]) -> bool:
+        output = self.execute_command(f'linkmetrics config {peer_addr} enhanced-ack clear')
+        return self.__parse_linkmetrics_mgmt_response(peer_addr, output)
+
+    def linkmetrics_config_enhanced_ack_register(self,
+                                                 peer_addr: Union[str, Ip6Addr],
+                                                 link_metrics_flags: str,
+                                                 reference: bool = False) -> bool:
+        if self.__valid_flags(link_metrics_flags, 'qmr') is False:
+            raise ValueError(link_metrics_flags)
+
+        output = self.execute_command(
+            f'linkmetrics config {peer_addr} enhanced-ack register {link_metrics_flags} {"r" if reference else ""}')
+        return self.__parse_linkmetrics_mgmt_response(peer_addr, output)
+
+    def linkmetrics_config_forward(self, peer_addr: Union[str, Ip6Addr], seriesid: int, series_flags: str,
+                                   link_metrics_flags: str) -> bool:
+        if self.__valid_flags(series_flags, 'ldraX') is False:
+            raise ValueError(series_flags)
+
+        if self.__valid_flags(link_metrics_flags, 'pqmr') is False:
+            raise ValueError(link_metrics_flags)
+
+        output = self.execute_command(
+            f'linkmetrics config {peer_addr} forward {seriesid} {series_flags} {link_metrics_flags}')
+        return self.__parse_linkmetrics_mgmt_response(peer_addr, output)
+
+    def linkmetrics_probe(self, peer_addr: Union[str, Ip6Addr], seriesid: int, length: int):
+        if length < 0 or length > 64:
+            raise ValueError(length)
+
+        self.execute_command(f'linkmetrics probe {peer_addr} {seriesid} {length}')
+
+    def linkmetrics_request_single(self, peer_addr: Union[str, Ip6Addr], link_metrics_flags: str) -> Dict[str, int]:
+        if self.__valid_flags(link_metrics_flags, 'pqmr') is False:
+            raise ValueError(link_metrics_flags)
+
+        output = self.execute_command(f'linkmetrics request {peer_addr} single {link_metrics_flags}')
+        return self.__parse_linkmetrics_report(peer_addr, output)
+
+    def linkmetrics_request_forward(self, peer_addr: Union[str, Ip6Addr], seriesid: int) -> Dict[str, int]:
+        output = self.execute_command(f'linkmetrics request {peer_addr} forward {seriesid}')
+        return self.__parse_linkmetrics_report(peer_addr, output)
+
+    def __parse_linkmetrics_mgmt_response(self, peer_addr: Union[str, Ip6Addr], output: List[str]) -> bool:
+        #
+        # Example output:
+        #
+        # Received Link Metrics Management Response from: fe80:0:0:0:3092:f334:1455:1ad2
+        # Status: Success
+        # Done
+        #
+
+        status = ''
+        report_received = False
+        ret = False
+
+        for line in output:
+            if 'Received Link Metrics Management Response from' in line:
+                address = line.split(': ')[1].strip()
+                report_received = address == peer_addr
+            elif 'Status' in line:
+                status = line.split(':')[1].strip()
+
+        return report_received and status == 'Success'
+
+    def __parse_linkmetrics_report(self, peer_addr: Union[str, Ip6Addr], output: List[str]) -> Dict[str, int]:
+        #
+        # Example output:
+        #
+        # Received Link Metrics Report from: fe80:0:0:0:3092:f334:1455:1ad2
+        #
+        # - PDU Counter: 2 (Count/Summation)
+        # - LQI: 76 (Exponential Moving Average)
+        # - Margin: 82 (dB) (Exponential Moving Average)
+        # - RSSI: -18 (dBm) (Exponential Moving Average)
+        # Done
+        #
+
+        results = {}
+        report_received = False
+
+        for line in output:
+            if 'Received Link Metrics Report' in line:
+                address = line.split(': ')[1].strip()
+                report_received = address == peer_addr
+            elif 'Received Link Metrics data in Enh Ack from neighbor' in line:
+                # If the Enhanced-ACK Based Probing is enabled, the CLI will output the following
+                # link metrics info after executing the `linkmetrics request` command. This case is
+                # used to skip these Enhanced-ACK related link metrics info.
+                #
+                # Received Link Metrics data in Enh Ack from neighbor, short address:0x3400 , extended address:c6a24d6514cf9178
+                # - LQI: 224 (Exponential Moving Average)
+                # - Margin: 0 (dB) (Exponential Moving Average)
+                #
+                # Received Link Metrics Report from: fe80:0:0:0:3092:f334:1455:1ad2
+                #
+                # - PDU Counter: 2 (Count/Summation)
+                # - LQI: 76 (Exponential Moving Average)
+                # - Margin: 82 (dB) (Exponential Moving Average)
+                # - RSSI: -18 (dBm) (Exponential Moving Average)
+                # Done
+                #
+                report_received = False
+
+            if not report_received:
+                continue
+
+            if '- LQI' in line:
+                results['lqi'] = self.__parse_numbers(line)[0]
+            elif '- Margin' in line:
+                results['margin'] = self.__parse_numbers(line)[0]
+            elif '- RSSI' in line:
+                results['rssi'] = self.__parse_numbers(line)[0]
+            elif '- PDU Counter' in line:
+                results['pdu_counter'] = self.__parse_numbers(line)[0]
+
+        return results
+
+    def __parse_numbers(self, line: str) -> List[int]:
+        values = re.findall("\-?\d+", line)
+        return list(map(int, values))
+
+    def __valid_flags(self, flags: str, flags_set: str):
+        # check for duplicate chars
+        if len(flags) != len(set(flags)):
+            return False
+
+        return set(flags).issubset(set(flags_set))
 
     #
     # Logging