The application discloses an integration testing device which comprises a test chip, a USB data interface, an industrial personal computer, a DSP, a voltage power-amplifier, a current power-amplifier, first and second waveform stoping protective alarms, a relay protection device, an I/O interface, a first A/D converter, a second A/D converter and a D/A converter. According to the device, setting commands of parameters such as current magnitude, frequency, phase angle and the like are sent through the industrial personal computer to the DSP; then, corresponding commands are sent by the DSP through the I/O interface to the D/A converter; and finally, the commands are outputted to a tested device after smoothing and power amplification by the current/voltage power-amplifiers. Thus, integration testing of multiple experiments can be independently completed so as to solve the problem existing in the prior art that experiment efficiency is low because a user must reconnect an experimental circuit in allusion to experimental contents in a lab.