The invention provides a rehabilitation therapy auxiliary device suitable for multiple environments. The device comprises a main body frame, an inclination auxiliary part, a supporting and fixing partand an emergency rescue part, wherein the main body frame is a whole Y-shaped bracket; circular grooves are respectively formed in two ports above the main body frame; n-shaped auxiliary frames are inserted into the circular grooves; a flexible buffer material is arranged on the auxiliary frame; and a pin column is fixedly connected to two ends of the auxiliary frame respectively. The device realizes efficient assistance to rehabilitation treatment, can adapt to multiple rehabilitation forms, and sends out help-seeking information in the first time when accidents occur, so as to strive for the best rescue effect and time; in addition, the device further realizes the possibility for patients to carry out rehabilitation training alone, when more than one person carries out rehabilitation training at the same time, the demand for the number of rehabilitation technicians can be significantly reduced, and thus the treatment cost is reduced; and meanwhile, the problem of serious shortage ofrehabilitation technicians is alleviated, so that patients can receive rehabilitation guidance and training in the best rehabilitation period.