Hanging basket system suitable for local convex structure of building

The hanging basket system comprises a first overhanging suspension arm, a second overhanging suspension arm and a hanging basket, the whole hanging basket is in a U shape, the local outwards-protruding structure of a building outer wall is located in a U-shaped opening, two hanging points are arranged at the positions, close to the two end points of a wall body, of the hanging basket, and the hanging basket is connected with the second overhanging suspension arm. The hanging basket is connected with the two first overhanging suspension arms through steel wire ropes, a hanging point is arranged at the end point, away from a wall body, of the hanging basket, the hanging basket is connected with the second overhanging suspension arm through steel wire ropes, the two first overhanging suspension arms are arranged on a building roof in an X-shaped crossed mode, and the second overhanging suspension arm is arranged right opposite to the hanging basket and erected on a parapet wall of the building roof through a wal