The invention provides a compressor and an air conditioner with the same. The compressor comprises a shell, a fixed scroll plate and a pressure separation plate, the fixed scroll plate is arranged in the shell; the pressure separation plate is fixedly arranged in the shell and is provided with a rotation stopping part matched with the fixed scroll plate so as to limit the rotation of the fixed scroll plate, and a gap is formed between the pressure separation plate and the fixed scroll plate along the axial direction. By applying the technical scheme of the invention, the problems of complex assembling processes and potential safety hazards of the compressor in the prior art are solved.