The invention provides an automobile air conditioning cycle air outlet system. The automobile air conditioning cycle air outlet system comprises a chamber body, an air inlet pipe, an air outlet pipe, an upper sliding cover, a lower sliding cover and a motor; the chamber body is a cylindrical hollow chamber body; one side of the chamber body is connected with the air inlet pipe and the air outlet pipe; a plurality of parallel vent holes are uniformly formed in the front surface of the chamber body; a press key is embedded in the vent holes; the upper sliding cover and the lower sliding cover, which can be both driven by the motor to rotate along a middle axis of the chamber body, sleeve the external side of the chamber body; when the motor rotates downward, the upper sliding cover can completely shield the vent holes; and when the motor rotate upward, the lower sliding cover can completely shield the vent holes. Compared with the traditional automobile air conditioning cycle air outlet system, the automobile air conditioning cycle air outlet system has the advantages of small shape and structure changes, controllable cost and small changing difficulty. During changing and using, the automobile air conditioning cycle air outlet system is more beneficial for promotion and achieves better market competitiveness.