The utility model discloses an IC card ammeter box, comprising an ammeter box body, which is equipped with an ammeter and a switch. The box body is arranged with a box gate connected with the box body through a door heel, a power transmission window and a switch window provided at the lower side of the power transmission window. The power transmission and the switch window are respectively provided with a small door, which is connected with the box body through the door heel. The door heel is arranged on the upper side of the small door and is in an open structure from downside to upper side. All round of the window is equipped with a rainproof slot, which is arranged with a rainproof and shock-absorption sealing strip. The utility model increases the safety and rainproof qualities of the outdoor ammeter box, reduces the potential safety hazards, lowers the complaint rates and prolongs the life expectancy of the ammeter box.