A foldable lamp includes a lamp body, a supporting unit and a connecting device. The connecting device includes a first connecting unit and a second connecting unit. The supporting unit includes a first supporting structure and a second supporting structure. The first supporting structure is rotatably connected with the lamp body through the first connecting unit. The second supporting structure is rotatably connected with the first supporting structure through the second connecting unit. The lamp is placed on a horizontal or hung on a hanger through the second supporting structure.