A design method of multifunction target and jamming signal simulator based on digital radio frequency memory (DRFM) technology is presented for wideband radar test verification,identification and evaluation.The design can simulate the echo signal with target model characteristics and motion characteristics.It can also product many kinds of radar jamming signals and noise signals,which can be usedto construct radar test electromagnetic signal environment,and provide reference for the wideband radar function and performance test.The design can effectively improve the radar test efficiency,realize the repeatability,ergodicity and accuracy of the test,ensure the standardization of radar test,effectively support the test verification and evaluation of radar equipment,and has good popularization and application value.