The utility model provides a special cost control box for agricultural drainage. The special cost control box is characterized by comprising a box body arranged in a farm, wherein the box body is internally provided with a main ammeter connected with mains supply; a main switch is connected below the main ammeter; the main switch is connected with two to six IC electric energy meters by a voltage wiring box; a socket is connected under each IC electric energy meter. The special cost control box provided by the utility model has the advantages that the special cost control box serves as the public ammeter with multi-user charging, so that the sockets can be switched on only by inserting IC cards in the IC electric energy meters; the special cost control box is used for supplying power to farmers for resisting drought, discharging water and illuminating and convenience is brought for use and charging of the farmers.