The invention discloses a guidance ammunition integrated simulation test conversion adaption device comprising a conversion circuit, an adaption circuit, a conversion control circuit, and a pulse generating circuit. The guidance ammunition integrated simulation test conversion adaption device is advantageous in that inspection and simulation of characteristic parameters, working time sequences, and data communication of an integrated body of guidance ammunition are realized, and a condition of a whole test is monitored; strong extensibility is provided; the testing requirement of the guidance ammunition of the new model is satisfied, and the testing requirement of the digital guidance ammunition is satisfied.