In order to improve the evaluation accuracy of anti-jamming performance of frequency selection diversity in troposcatter communication, an analysis method of adaptive frequency selection diversity anti-jamming performance is proposed. Based on the anti-fading diversity reception demodulation algorithm, a frequency selection anti-jamming analysis model is established. Through simulation analysis, accurate anti-interference performance of frequency selection diversity is obtained, and quantized analysis results are obtained according to different interference characteristics. The simulation results show that the adaptive frequency selection diversity anti-jamming analysis method is superior to the existing troposcatter communication anti-jamming analysis method, convenient and effective, and significantly improves the accuracy of anti-jamming performance evaluation.