To reduce compression work done by a compressor and inexpensively improve efficiency of an refrigerating cycle.

This compression refrigerating cycle is constituted by interconnecting an evaporator 1, the compressor 2, a condenser 3 and an expansion valve 4 via refrigerant piping 5. A cold taking-out pipe 6 is connected to the evaporator 1 to take out cold by evaporation latent heat in the evaporator 1. First and second adsorbers 8, 9 filled with an adsorbent are connected to a portion in the middle of the refrigerant piping 5 interconnecting the compressor 2 to the condenser 3, via a four-way change-over valve 7 as a switching means. Hot water piping 10 is connected to the first and second adsorbers 8, 9 and adsorbed refrigerant gas is desorbed by heating. Thus, refrigerant gas compressed by the compressor 2 is adsorbed by the first adsorber 8 and the pressure of the refrigerant gas on the outlet side of the compressor 2 is reduced. In the second adsorber 9, the adsorbed refrigerant gas is heated for desorption and is supplied to the condenser 3.