Wind turbine generator yaw limit switch test platform

The utility model discloses a testing platform for a yaw limit switch of a wind turbine generator. Wherein the encoder signal line interface and the state display lamp are installed on the upper portion of a test platform cabinet body. The driving gear and the gear at the bottom of the limit switch are arranged on a panel of the test platform cabinet body and are meshed with each other; the computer host and the electrical equipment are arranged at the lower part of the test platform cabinet body, an encoder of the limit switch is connected with an encoder signal line interface through a signal line, and the computer host drives the driving device to drive the driving gear to rotate through a sent electric pulse signal; according to the utility model, the test work of the yaw limit switchcan be rapidly completed, the test is realized through the output and reception of pulse signals, the quality of the limit switch is judged through the state of the state display lamp, and the intervention of human factors on