Elevator safety arrangement for implementing safety spaces in an elevator shaft, said safety arrangement comprising a mechanical safety device, preferably a pole or barrier (10, 18,24), which can be moved to a working position to ensure a sufficient safety space in the elevator shaft, and said safety arrangement additionally comprising an electric safety system comprising at least the following equipment: - in connection with the mechanical safety device (10, 18,24) at least one detector for identifying the operating state of the mechanical safety device, and - in connection with the elevator landing door at least one detector (7,8, 37, 38, 39, 40) for identifying the position of the landing door, and - means for reading the detectors fitted in conjunction with the landing door, - an electric safety controller, which reads data from elevator control devices and which additionally reads data from detectors comprised in the electric safety controller, - a data interface bus between the electric safety controller and the elevator control devices, wherein the electric safety controller based on the data obtained, controls one or more mechanical stopping devices which prevent movement of the elevator car in the elevator shaft, - characterized by comprising - in conjunction with the elevator car door at least one detector for identifying the position of the elevator car door, and - means for reading the detectors placed in conjunction with the elevator car door, wherein the safety arrangement comprises further - a controllable manipulator by means of which the mechanical safety device (10, 18,24) can be set into a working position, said manipulator being controlled by the electric safety controller comprised in the electric safety system; - two separate sets of end limit markers (12, 13, 14, 15) for determining the position of the elevator car, of which end limit markers the ones (12, 14) located closer to the ends of the elevator shaft determine the extreme limits of elevator car movement during normal operation while the ones (13, 15) located farther away from the ends determine the extreme limits (16, 17) of elevator car movement during maintenance operation, and that readers (43, 44) of end limit markers are fitted in conjunction with the elevator car, said readers being connected to the electric safety controller via the data interface bus. - in connection with the mechanical safety device (10, 18,24) at least one detector for identifying the operating state of the mechanical safety device, and - in connection with the elevator landing door at least one detector (7,8, 37, 38, 39, 40) for identifying the position of the landing door, and - means for reading the detectors fitted in conjunction with the landing door, - an electric safety controller, which reads data from elevator control devices and which additionally reads data from detectors comprised in the electric safety controller, - a data interface bus between the electric safety controller and the elevator control devices, wherein the electric safety controller based on the data obtained, controls one or more mechanical stopping devices which prevent movement of the elevator car in the elevator shaft, - characterized by comprising - in conjunction with the elevator car door at least one detector for identifying the position of the elevator car door, and - means for reading the detectors placed in conjunction with the elevator car door, - a controllable manipulator by means of which the mechanical safety device (10, 18,24) can be set into a working position, said manipulator being controlled by the electric safety controller comprised in the electric safety system; - two separate sets of end limit markers (12, 13, 14, 15) for determining the position of the elevator car, of which end limit markers the ones (12, 14) located closer to the ends of the elevator shaft determine the extreme limits of elevator car movement during normal operation while the ones (13, 15) located farther away from the ends determine the extreme limits (16, 17) of elevator car movement during maintenance operation, and that readers (43, 44) of end limit markers are fitted in conjunction with the elevator car, said readers being connected to the electric safety controller via the data interface bus.