Multifunctional telephone network testing device and testing method using same

The invention relates to a multifunctional telephone network testing device and a testing method using the same. The multifunctional telephone network testing device comprises an operation end, a main control module, a first jumper wire, a circuit switching module, a second jumper wire, an indication module and a power supply, wherein one of three plugs of a second end of the first jumper wire is selected to be inserted into a socket matched with a wiring port needing to be tested; corresponding operation instructions are input into the operation module according to different plugs; after the operation instructions are transmitted to the main control module, the main control module controls the circuit switching module to execute corresponding work according to the operation instructions, and various testing tasks such as telephone installation, parallel operation and relocation and indoor and outdoor line fault elimination are completed separately. Different testing work and debugging work can be completed t