To SSH into a Google Compute Engine VM instance, you first need to create and configure the instance.Create a compute instance using the 'gcloud compute instances create' command with the desired parameters.SSH into the VM instance by using the 'ssh' command with the 'root' username and the instance's External IP.You can also use SSH tools like WinSCP, PuTTY, or Remmina for easier management of your VM instance.