In the design of the speed dragging deception jamming system, it is necessary to quickly generate the interference signals and modify the interference parameters to deal with the complex and varied electromagnetic environment. The accuracy and stability of the frequency of the interference signal, as well as the generation speed of the interference signal directly affect the effect of the interference. The basic principles of deception jamming and Direct Digital Synthesizer(DDS) are introduced, the implementation of Field Programmable Gate Arrays(FPGA) based on System Generator and DDS for multi-speed deception jamming is presented. The construction of interference module is proposed and its verification methods are put forward. The test result proves that the DDS technology is very suitable for the synthesis of the interference frequency; and System Generator is very suitable for the FPGA implementation of multi-speed dragging deception jamming.