The invention relates to a laser shock assisted electric arc additive manufacturing method, belongs to the field of additive manufacturing, and solves the problems that in the prior art, grains in anelectric arc additive component are thick and large, and holes, oxides and other defects exist. The laser shock assisted electric arc additive manufacturing method comprises the following steps that 1, an electric arc additive machining path is designed; 2, electric arc additive machining parameters are set; 3, the included angle between a laser cleaning head and a welding gun and machining parameters of a pulse laser cleaning machine are determined; 4, the included angle between a laser shock wave emitting head and the welding gun and machining parameters of a pulse laser shock emitter are determined; 5, the welding gun, the laser shock wave emitting head and the laser cleaning head work synchronously; and 6, an electric arc additive part is obtained according to the additive path. According to the laser shock assisted electric arc additive manufacturing method, through cooperative work of an electric arc additive device, a laser cleaning device and a laser impact device, the problemsthat the grains in the electric arc additive component are thick and large, and the holes, the oxides and the other defects exist are solved.