PURPOSE: A rotary compressor is provided to reduce manufacturing costs by simplifying assembling process. CONSTITUTION: A rotary compressor comprises: a cylinder part which forms a compression room; a compression part(40) which compresses a compressed media with revolving in the inside of the compression room; and a motor part which supplies the torque to the compression part. The compression part includes: a rotary shaft(41) which is transmitted torque from the motor part; and a roller part(43) which is projected to be in eccentric from the rotary shaft along the radial direction in the inside of the compression room and compresses the compressed media in the compression room according to the rotation of the rotary shaft. The roller part is integrally formed with the rotary shaft.
