In order to fully apply theoretical knowledge to practical anti-jamming operation and improve training efficiency, a radar anti-jamming auxiliary training software based on DirectX display technology is designed and implemented. The video echo simulation methods such as radar target, sea wave, noise interference, and false target are studied, the correlation calculation model is established, the mechanism of radar interference and anti-jamming technology are analyzed, and the narrow-band aiming noise interference pattern is taken as an example for software implementation. The results show that the design can better solve the problem of connection between theoretical teaching and equipment operation in radar training organization, and meet the anti-jamming training needs of operators.