簡單的把過程寫一下：

1.備份ssh.plist：

cp /System/Library/LaunchDaemons/ssh.plist /Library/LaunchDaemons/ssh2.plist

chmod o+w /Library/LaunchDaemons/ssh2.plist

vim /Library/LaunchDaemons/ssh2.plist

sudo chown -R root /Library/LaunchDaemons/ssh2.plist

sudo launchctl load -w /Library/LaunchDaemons/ssh2.plist

netstat -at | grep LISTEN

2.編輯/System/Library/LaunchDaemons/ssh.plist 文件，我們看到裏面有Sockets這個key：

 <key>Sockets</key>
        <dict>
                <key>Listeners</key>
                <dict>
                        <key>SockServiceName</key>
                        <string>ssh</string>
                        <key>Bonjour</key>
                        <array>
                                <string>ssh</string>
                                <string>sftp-ssh</string>
                        </array>
                </dict>
        </dict>
 

將其中的SockServiceName對應的string：ssh修改為想要的端口即可

MAC電腦修改ssh端口