The invention provides electrophoresis equipment for thin film deposition. An electrophoresis tank and four support bars are installed on a base; horizontal sliding chutes are born among the four support bars; two electrode clamps are inserted between the two horizontal sliding chutes; both sides of the horizontal sliding chutes are respectively provided with micrometer caliper heads; the micrometer caliper heads are connected with the adjacent electrode clamps through insulating connecting pieces; the rotating micrometer caliper heads push the connected electrode clamps to horizontally move in the sliding chutes; springs are connected between the rotating micrometer caliper heads and the electrode clamps; the bottoms of the two electrode clamps respectively clamp electrodes; and the electrodes are positioned in the electrophoresis tank. The invention can precisely regulate the electrode interval and has convenient, stable and reliable operation.