Abstract: The present invention discloses an electric rat, killer, wherein a box body is of a hollow box body structure, the box body is provided with unidirectional doors on two sides, an infrared sensor inside, a bottom plate at the bottom and a top plate at the top, and the box body fixes the top plate and the bottom plate through buckling pieces; and a high-voltage module is arranged in the top plate, the infrared sensor detects a rat entering signal and transmits the signal to the high-voltage module to perform electric shock action, and a control key can be pressed to kill a rat by a manual electric shock mode.