In order to solve the problem that the blaster of traditional explosive device has large volume and mass, and the output voltage is not adjustable, and it is difficult to meet the requirement of complex initiation, the new blaster for initiating explosive device is introduced. The charging and discharging circuit based on super capacitor module is used. The design of the overall scheme is described. The design of software and hardware is carried out separately, and the prototype test is carried out on the basis of blasting requirement of some initiating explosive device. The experimental results show that the device has the advantages of adjustable output voltage and portability, and has wide application prospects.