The invention relates to an automatic cleaning system for an intelligent monitoring camera, comprising a mounting column and a cleaning device. A mounting plate is arranged on the right end of the mounting column, mounting holes are symmetrically arranged on the mounting plate on the mounting column, and a mounting hole is arranged on the left end of the mounting column. There is a square groove, and the cleaning device is installed on the left end of the installation column; the cleaning device includes a cleaning motor, a cleaning rotating shaft, a rotating shaft connecting plate, a cleaning rotating plate, a cleaning base, a cleaning mechanism, a positioning mechanism, a stable push rod, and a stable gripper , stable connecting plate and jaw angle push rod; the positioning mechanism includes a positioning support block, a positioning push rod, a positioning connecting frame, an extrusion plate, an extrusion push rod, a positioning sliding column, a positioning spring, a positioning clamp plate and a limiter. bit pole. The invention can solve the problems existing in the existing camera cleaning, such as high difficulty in cleaning the camera, poor cleaning effect of the manual camera, shaking of the camera during cleaning, inability to limit the position of the camera during cleaning, and the like.