The invention discloses wall lamp with a variable illumination direction, including lamp beads, a lamp bead seat, a mounting box, and a power adapter. The power adapter is installed within the mounting box; the lamp bead seat is of a cuboid structure, and an accommodating cavity is formed in the cuboid structure, the mounting box is located in the accommodating cavity. The lamp beads are arranged on an outer wall of one side surface of the cuboid structure. A first connector is arranged on an inner side wall of the lamp bead seat, and a second connector is arranged on the mounting box. The first connector is connected to the second connector in a pivotal way. A side surface of the first connector pushes against a side surface of the second connector, so that a level adjusting knob is formed by the mounting box and the lamp bead seat.