The invention discloses a variable-angle automatic spot welding device moving along with a profiling track, which is used for realizing the automatic welding on an arc profile workpiece. The variable-angle automatic spot welding device moving along with the profiling track comprises a base, workpiece locating mechanisms, a welding machine, a welding machine space angle adjusting mechanism, a welding machine rotating mechanism, a welding machine movable driving mechanism and a profiling track seat, wherein the welding machine is fixedly arranged on the upper surface of the welding machine space angle adjusting mechanism through a welding machine fixing seat, the welding machine space angle adjusting mechanism is in assembling with the welding machine rotating mechanism, the welding machine rotating mechanism is arranged between the welding machine space angle adjusting mechanism and the welding machine movable driving mechanism, the welding machine movable driving mechanism and the profiling track seat are positioned on the base, and the left side and the right side on the upper surface of the base are symmetrically provided with the workpiece locating mechanisms. According to the variable-angle automatic spot welding device moving along with the profiling track, disclosed by the invention, the automation degree is high, the operation is simple, the labor intensity of an operator can be reduced, the working efficiency and the welding quality can be increased, the variable-angle automatic spot welding device has the characteristics similar to those of a mechanical arm, the input cost is lower, and the maintenance is more convenient.