The invention discloses a external safety elevator. The external safety elevator comprises an elevator channel, a lift car, a hall door and a buffering layer, wherein the elevator channel is arranged on a rain eaves of a unit door and is fixed to the outer side of a house; the lift car comprises a car bottom, a car wall, a car top and a car door, the lift car is arranged in the elevator channel, and an air inlet blower and an air outlet blower are arranged on the upper part of the car top; the hall door is arranged on a middle platform of the house, the middle platform of the house is a stopping layer for the lift car, and the position of the hall door is in correspondence with the position of the car door at the middle platform; and the buffering layer is arranged and fixedly connected with the bottom of the car bottom. The external safety elevator has the advantages that the external elevator is installed on the outer side of the house, the requirement for installation of an old residential area is less and influence is small; the middle platform serves as a stopping layer, living of residents is not affected, simple and convenient are achieved, and arrangement of the buffering layer below the elevator lift car make stopping of the elevator more safe and smooth.