The invention discloses an on-vehicle water-sucking type wiper, comprising an on-vehicle type water-sucking dust suction machine and a wiper; the on-vehicle type water-sucking dust suction machine comprises a vacuum seal motor, a suction pipe, a recycling bin, a pull rod and wheels; the vacuum seal motor is provided with a seal cover and a vehicle battery connector; the vehicle battery connector is used for connecting the vacuum seal motor with a vehicle battery and providing the vacuum seal motor with a power supply as which the vehicle battery is served; the wiper comprises a connector, a hollow handle, a water sucking cavity, a water sucking basin, fluff, rubber strips, a bendable pipe, a water sucking mouth of a bend pipe and a switch of a shift cavity; the periphery of the water sucking basin is provided with the fluff and the rubber strips all around or locally; one end of the hollow handle is provided with two paths, wherein one path is connected with the water sucking cavity, and the other path is connected with the bendable pipe; and the water sucking cavity is provided with the switch of the shift cavity. Matched with a fountain brush, the on-vehicle water-sucking type wiper can form a set of perfect vehicle-washing cleaning tool.