In view of the shortages of low automation and poor generality in the process of EMUs debugging, a kind of intelligent acquisition device based on wireless transmission was designed based on wireless transmission. The device consists of command acquisition controller and handset. The acquisition controller connected the EMUs with electric coupler, using the embedded wireless module to communicate with the handheld machine to realize the real-time acquisition and control of 196 kinds of command signal data. The device had completed the actual performance tests such as power test, insulation resistance test and voltage polarity test. The test results showed that the device has good stability and safety.