The utility model discloses a remote controller tester, and belongs to the technical field of remote controller detection. Comprising a single-
chip microcomputer circuit module, and the single-
chip microcomputer circuit module is electrically connected with a
signal receiving unit module, a display screen module, a function selection module and a power conversion module. Under the cooperation of the single-
chip microcomputer circuit module, the
signal receiving unit module, the display screen module, the function selection module and the power supply conversion module, the tester can automatically search
wireless signals sent by a remote controller and analyze the signals sent by the remote controller, and can also be connected with the remote controller in a wired mode to realize the
remote control. The analysis result is displayed on the screen of the detection device in a
graphic mode, the graphic reflects the real operation of each key and
handle on the remote controller, the fault reason of the remote controller can be judged by operating the remote controller and graphic display, and maintenance is convenient; after the tester is used, fault points are clear at a glance, fault reasons can be quickly found, the remote controller can be quickly repaired, and practicability is high.