The invention discloses a building construction concrete stirring device which comprises a bottom frame, wherein a supporting frame is arranged on the upper surface of the bottom frame, semicircular supports are arranged on the left side and the right side of the upper surface of the supporting frame, an arc sliding block is arranged on the inner surface of each semicircular support, a stirring barrel is arranged in the semicircular supports jointly, sliding grooves are arranged on the left side and the right side of the peripheral surface of the stirring barrel, each arc sliding block is arranged in the corresponding sliding groove, a door-shaped support is arranged on the upper surface of each semicircular support, a top plate is arranged on the upper surfaces of the door-shaped supportjointly, an installation plate is arranged on the lower surface of the top plate, a micro controller is arranged in an electric control box, and the micro controller is electrically connected with a rotating motor through a wire. The building construction concrete stirring device disclosed by the invention has the beneficial effects: the inside of the stirring barrel can be cleaned, the stirring barrel can be folded after being cleaned, use of the stirring barrel is not affected, and water can flow out after the stirring barrel is cleaned.