The integration of radar T/R modules has become higher due to the rapid development of integrated circuits, and multi-channel tile type T/R modules that are integrated with antennas have emerged. Due to the integration of the antenna, the original component test method is no longer applicable to the transceiver of the new structure. An auxiliary radiation contrast test method is proposed, which uses the radiation method to test the component antenna unit firstly, then tests the components of the integrated antenna, and finally deducts the influence of the antenna on the component circuit performance, and obtains the performance parameters of the component circuit. Based on the analysis and testing principle, a multi-channel X-band tile T/R component with integrated antenna is utilized to test the transmit power, receive gain and phase consistency. The test results are compared with that of direct test of the circuit. The amplitude error is <0.63 dB and the phase error is <10.5°, which meets the engineering application requirements.