Abstract: In order to explore the electric spark automatic deposition technology, the electrode wobble orthogonal tests and multi-pass multi-layer continuous deposition tests were designed and carried out, the effect of electrode wobble parameters on formation of single pass deposited layer and the effect of electrode wobble on deposition efficiency and material transfer efficiency of multi-pass multi-layer continuous deposition were analyzed. The results show that the electrode wobble can increase the contact area between electrode and workpiece during the longitudinal movement of the electrode, the deposition points are evenly distributed, and the deposition efficiency and material transfer efficiency of electro-spark deposition can be improved. During single-pass deposition with electrode wobble, the surface morphology, average width, average fluctuation value, deposition efficiency and material transfer efficiency of single-pass deposited layer are affected by wobble amplitude, wobble spacing and velocity of electrode. The primary and secondary factors affecting deposition efficiency and material transfer efficiency are velocity, wobble spacing and wobble amplitude, the primary and secondary factors affecting average width are wobble amplitude, velocity and wobble spacing, and the primary and secondary factors affecting average fluctuation value are wobble amplitude, velocity and wobble spacing.