The invention discloses a floor sweeper capable of going upstairs. The sweeper comprises a
machine body, mechanical arms, an upstairs going mechanism, a
machine body lifting device, a sweeper,
mops, amop cleaning device, a wiper cleaning device, a correcting device, a double-shaft seat mechanism and a water injection mechanism, wherein the
machine body lifting device, the upstairs going mechanismand two pairs of the mechanical arms are mounted on the machine body; clamping jaws and wipers are respectively mounted at the front ends of the two parts of the mechanical arms; the mop cleaning device and the wiper cleaning device are arranged in the machine body and can automatically clean the
mops and the wipers; and the clamping jaws can clamp and lift objects such as chairs, stools, shoes,baskets and sweep the floor below. When sweeping the floor, the sweeper is remotely controlled by the
host machine to
climb down from a support plate below the
host machine body to sweep, absorb dustand mop the floor, and after sweeping the floor, the sweeper climbs onto the support plate for parking; the mechanical arms drive the wipers to wipe the surfaces of tables, chairs, tea tables and thelike; when going up and down
stairs, the upstairs going mechanism lowers a ladder climbing step, and when not going upstairs, the upstairs going mechanism is retracted upward; the sweeper can sweep the floor of both upstairs and downstairs; one machine has multiple functions and can automatically clean the
mops; and the floor is cleaner after mopping the floor.