The invention provides a compressor and an air conditioner provided with the same. The compressor comprises a shell body, a motor assembly and an adjusting part, wherein the motor assembly is locatedin an inner cavity of the shell body; the motor assembly comprises a motor rotor connected with the shell body and a motor rotor arranged on a rotary shaft; at least one part of the adjusting part isarranged on the shell body in a penetrating manner; the adjusting part is movably arranged relative to the shell body so as to adjust the coaxiality between the motor stator and the motor rotor. By adopting the compressor provided by the invention, the problem in the prior art that the coaxiality between the motor stator and the motor rotor of the compressor is difficult to adjust is solved.