The utility model discloses a machine-room-less elevator which comprises an elevator cage, a traction machine, a counterweight frame and a flexible traction part, wherein the elevator cage and the counterweight frame are hung in a hoistway, a traction wheel is arranged on the traction machine and is connected with a driving mechanism, a guide wheel is arranged on the counterweight frame, at least one elevator bottom diversion sheave is arranged at the bottom of the elevator cage, the traction machine is fixedly arranged at the bottom of the elevator cage, a top diversion sheave is also arranged at the top part of the hoistway, one end of the flexible traction part is connected to the top part of the hoistway, and the other end of the flexible traction part winds round the guide wheel, upwards winds round the top diversion sheave, then downwards winds round the traction wheel along one side of the elevator cage, and then winds round the elevator bottom diversion sheave and is upwards connected to the top part of the hoistway along the other side of the elevator cage; and a wrap angle of the flexible traction part on the traction wheel is more than 90 degrees. The elevator is convenient to install, and the height or the depth of the top layer or the bottom layer of the hoistway is not required to be increased, so that the construction cost is saved; and a few pre-embedded parts are arranged in the hoistway so as to make the hoistway construction more convenient.