The invention discloses a wall surface watering device used for civil construction. The device comprises fixing boards, supporting legs, rollers, installation boards, guiding grooves, handles, reinforcing rib plates, screws,
servo motors, movable sleeves, ball nuts, guiding blocks, a water receiving cover, a hose, spray heads, a connection board, short pipes, threaded sleeves, connection blocks,
magnet block, bar iron, a water tank, a submerged pump, a water adding
pipe, a first connection
pipe, a second connection
pipe, straight rods, concave holes, springs, rubber balls and balancing weights. The wall surface watering device used for civil construction is reasonable in structure, and can effectively water a wall surface, the problem that a
water pipe head portion is held and moved manually to water the wall surface is avoided, the labor intensity of people during watering can be effectively reduced, and meanwhile, the watering efficiency can be improved; during watering, through thewater receiving cover, water which drips from a wall and water which is scattered by the spray heads can be received, and through guiding of the first connection pipe, the water in the water receivingcover can flow back to the water tank for recycling so that waste of
water resources can be effectively avoided.