The invention discloses a freezing-thawing centrifugal model box in a freezing-thawing deformation centrifugal simulation system. The freezing-thawing centrifugal model box comprises a heat exchange system and a model box body, wherein the heat exchange system covers an opening of the model box body and consists of a sealed box body and multiple semiconductor devices arranged in the sealed box body; the multiple semiconductor devices are arrayed on a heat exchange base plate at intervals and are connected with the heat exchange base plate; a plurality of sensor mounting holes are formed in the sealed box body in clearances of the multiple semiconductor devices and consist of upper holes formed in a top heat exchange cover and lower holes corresponding to the heat exchange base plate; a sensor mounting sleeve is arranged in each sensor mounting hole; a through hole is formed in each sensor mounting sleeve; the sizes of the through holes are slightly larger than the sizes of the lower holes in the heat exchange base plate; the upper ends of the sensor mounting sleeves penetrate through the upper holes and are fixed on the top heat exchange cover; the bottom ends of the sensor mounting sleeves are fixed on the upper surface of the heat exchange base plate around the lower holes. The freezing-thawing centrifugal model box is reasonable in structure and convenient for displacement sensor mounting, and can realize flexible extending amount adjustment of sensors and meet a requirement on depths of different soil models.