The invention provides an elevator related personnel shortest path planning system which comprises a device MA and a device MB. The device MA is used for setting elevator related personnel information and target elevator information. The device MB is used for obtaining a reach path under constraint conditions according to the target elevator information and the elevator related personnel information. A calculation scheme of the shortest path problem within the constraint time is provided, all to-be-processed elevators are traversed by starting from starting points of elevator related personnel, an effective path spending shortest predicted elevator processing time for the elevators can be obtain, and a calculation result can be sent to mobile phones of elevator related personnel for path prompt. The system is applied to platforms for elevator maintenance, check and the like, the processing path planning method can be practically applied, a method is provided for elevator related personnel for planning a path, elevator daily processing work timeliness is improved, and the transition path in elevator daily processing work is shortened.