Double channel passive device power tolerance test system

The utility model relates to a double channel passive device power tolerance test system which comprises two signal generators. Each signal generator is correspondingly connected with a signal switch. The signal switches are connected with bridges through power amplifiers. Each signal switch is connected with two power amplifiers. Connection switching is carried out through the switches. Each 3dB bridge is connected with a diplexer through a bi-directional coupler. Each bridge is connected with an external load. Forward and reverse coupling ends of each bi-directional coupler are respectively connected with two terminals of a double channel power meter. Each duplexer is connected with a spectrum analyzer through a detection port. Each duplexer is connected with a test part. Each test part is connected with an attenuator through a filter. Each test part is connected with an external load. Each attenuator is connected with a spectrum analyzer. According to the utility model, the work condition and the technical indicator of a device are inspected under peak power and average power, so as to judge the performance of the device; the communication capacity and the communication quality of the whole communication system are ensured; and system interference is reduced from the source.