The invention discloses a wall lamp with easy installation and uninstallation, which includes lamp beads, a lamp bead mounting frame, a mounting case and a power adapter. The mounting case includes a case body and a cover. The lamp bead mounting frame is a rectangular parallelepiped structure. The lamp beads are mounted on the outer surface of one side wall of the rectangular parallelepiped structure. The mounting case is mounted in the accommodating cavity of the lamp bead mounting frame. One side of the case cover is hinged on one side of the case body to form a hinge structure, and the other side of the case cover is separated from or fixedly connected to the other side of the case body. The invention provides a wall lamp with safe and easy installation and uninstallation.