Loopback test method, device, circuit and equipment of communication equipment network port and medium

The invention discloses a loopback test method, device and circuit of a communication equipment network port, electronic equipment and a computer readable storage medium, the method is applied to a controller connected with a switch circuit module, the communication equipment network port is connected with a PHY port through the switch circuit module, and the method comprises the following steps:receiving an input access mode selection instruction; determining a switch switching instruction corresponding to the access mode selection instruction; and sending the switch switching instruction tothe switch circuit module, and switching a signal path connection state between the communication equipment network port and the PHY port so as to carry out a loopback test in a corresponding mode. According to the invention, the switching circuit module arranged between the network port and the PHY port of the communication equipment is utilized, under the condition that an optical module, an optical fiber loopback modul