To provide an elevator hoisting machine, and an elevator system in which collision sound at the time of brake suction and brake contacting is reduced to decrease noise, in which detection errors to brake contacting and separating are eliminated, and in which workability in adjusting brake contacting force is favorable.

This elevator hoisting machine is provided with thrust amplifying and transmitting parts 20 and 25 to amplify thrust generated from an electromagnet 23 when non-energized to be transmitted to a brake lining 21, and a stroke reducing and converting part 25b to convert a stroke δ3 of a movable part 23b of the electromagnet 23 into a micro-stroke δ1 of the brake lining 21 related to contacting with/separating from a rotor drum 1a.