As economic crimes are very different from traditional street crimes,investigators have to know and understand deeply the characteristic of economic criminal cases and criminals in order to master the interrogation techniques for investigating economic crimes.This paper concludes and introduces the interrogation techniques for investigating economic crimes from the following aspects: the chance grasping of interrogate,scientific plan of the interrogation,the place arrangement of interrogation,methods and techniques of interrogation and the problems we pay attention to in interrogation etc.