A nodal point pressure-equalizing device of steel rope sets for an elevator, including a pressure-equalizing device main body, a base seat, a first nodal point component and a second nodal point component. The pressure-equalizing device main body can be rotatably provided on the base seat. The first nodal point component and the second nodal point component are respectively arranged at both ends of the pressure-equalizing device main body and are respectively matched with and connected with the corresponding steel rope set. The first nodal point component and the second nodal point component can respectively rotate around rotational centers thereof, and the rotational centers and the rotational center of the pressure-equalizing device main body are on the same horizontal plane.