The utility model discloses an anti-misoperation protective cover of a protective pressure plate. The protective cover includes a pressure plate entrance protective cover and a pressure plate exit protective cover. The pressure plate entrance protective cover adopts a gate-type cover body. A warning word layer is arranged on the upper surface of a gate edge of the gate-type cover body. Magnets are embedded on the lower surfaces of two gate posts of the gate-type cover body. The pressure plate exit protective cover adopts a column-type cover body. A warning word layer is arranged on the upper surface of the column-type cover body. A blind hole is arranged at the middle of the lower surface of the column-type cover body. Magnets are embedded on the lower surface of the column-type cover body. The pressure plate entrance protective cover and the pressure plate exit protective cover are all provided with three colors. The gate-type cover body and the column-type cover body are both red, green and blue respectively. The anti-misoperation protective cover adopts the two kinds of protective covers so that warning protection can be carried out when a pressure plate enters and exits and misoperation of operation personnel is effectively prevented; and security accidents are reduced and personal security is protected.