The utility model relates to the field of self-service devices, in particular to a self-service device which comprises a cabinet, a sliding frame, a first sliding rail mechanism, a rotating mechanism, a first locking mechanism and a processing mechanism. The sliding frame is movably connected with the cabinet through the first sliding rail mechanism and can extend or retract from the cabinet, the processing mechanism is movably connected with the sliding frame through the rotating mechanism and can relatively rotate between a working position and a maintaining position, and the first locking mechanism is used for locking the sliding frame at an extending position when the sliding frame extends out of the cabinet and the processing mechanism is positioned at the maintaining position. Compared with the prior art, the self-service device avoids damage when the processing mechanism retracts into the cabinet for unexpected reasons after the processing mechanism is pulled out.