Abstract: In order to establish the prediction model for the radiation effect of communication equipment under the multi-source continuous wave radiation condition, the evaluation method is put forward, and the jamming of the communication equipment is studied. Based on the general electric field theory, a kind of ultra-short wave military radio station is used as experiment object, the evaluation model is derived based on general electromagnetic field theory, the interference effect test platform is set up, and the evaluation model is verified through the experiment. The experimental results show that the internal obstruction interference is related to the equivalent field strength and the peak field strength sensitivity index under the condition of multi-source continuous wave radiation. The multi-source continuous wave irradiation effect can be predicted by comparing several sensitive indexes with 1.