The invention provides a compressor piston and a manufacturing method for a blank of the compressor piston, and belongs to the technical field of machinery. The problem that the structure types of existing compressor pistons are insufficient is solved. The compressor piston comprises an inner pipe, an outer pipe and two end covers located between the inner pipe and the outer pipe. One end cover and the inner pipe are connected into a whole, and an outer edge part of the end cover is fixedly connected with the outer pipe in a sealed mode. The other end cover and the outer pipe are connected into a whole, and an inner edge part of the end cover is fixedly connected with the inner pipe in a sealed mode. The two end covers of the compressor piston are integrated with the inner pipe and the outer pipe correspondingly, so that the compressor piston is just composed of the two parts, and joints of the two parts are arranged in a staggered mode; and accordingly, the strength of the compressor piston is remarkably improved. The weight of the compressor piston is further reduced, and thus the energy efficiency ratio of a rotary compressor can be further increased.