Marine monitoring equipment mounting rack applied to coral reef edge abrupt slope

The invention discloses a marine monitoring equipment mounting rack applied to a coral reef edge abrupt slope. The marine monitoring equipment mounting rack comprises a gradient adapting device, an automatic leveling device and an instrument carrying device. The gradient adapting device comprises a gradient fitting frame, a horizontal frame and an opening and closing fixing frame. One end of the horizontal frame is rotationally connected with one end of the gradient fitting frame, and a mounting hole is formed in the other end of the horizontal frame. The opening and closing fixing frame is connected to the other end of the gradient fitting frame, arc-shaped grooves are formed in the two sides of the opening and closing fixing frame, the connecting line of the circle centers of the two arc-shaped grooves coincides with a rotating shaft of the horizontal frame, positioning shafts sliding along the arc-shaped grooves are arranged on the two sides of the horizontal frame, and the openingand closing angle of the