The Difference between an ideal cycle and its real cycle and the length of cycle time aretwo main factors affecting the real operation of heat regellerative adsorption refrigerationsystem. In this paper, these factors are chiefly analyzed. Some conclusions are given asfollows: A real cycle system can be controlled according to some regulations to reduce thedifference between the real cycle and its corresponding ideal cycle, There is an optimum cycletime which makes the refrigeration power density the greatest. The Difference between an ideal cycle and its real cycle and the length of cycle time aretwo main factors affecting the real operation of heat regellerative adsorption refrigerating system. Some papers are given as follows: A real cycle system can be controlled according to some regulations to reduce the difference between the real cycle and its corresponding ideal cycle, where is an optimum cycle time which makes the refrigeration power density the greatest.