The utility model discloses a stable seat type charger, which comprises a charger body and a base, the charger body is arranged at the top of the base, a concave hole is arranged in the middle of one side wall of the base, an anti-drop piece is arranged on one side of the base to ensure the stability when a charging wire is inserted into the charger body for use, and the anti-drop piece comprises a plug board arranged on one side of the base. One end of the plug board is fixedly connected with an anti-falling plate, the top end of the anti-falling plate is provided with a threading hole, the surface of the base is provided with a positioning piece, and an installation piece is arranged between the charger body and the base. According to the utility model, after a user inserts a data line head into the charging socket of the charger body, the anti-falling plate is moved to a specified height according to the height of the head of the data line, then the anti-falling plate is positioned through the screw, the through hole and the threaded hole, and then the unlocking plate is pulled so that the positioning block currently arranged in the positioning groove is separated from the inner cavity of the unlocking plate; limiting on the anti-falling plate is relieved, and the anti-falling plate moves towards one side under the action of the first spring.