Abstract: The present invention relates to a virtual reality-based task-oriented gait training system and method, in which the virtual reality-based task-oriented gait training system according to the present invention includes a gait detection unit that detects a walking movement of a trainee, a projector unit that projects virtual walking environment information for inducing a gait training of the trainee, and a control unit that executes a walking training program to change the virtual walking environment information according to the detected walking movement of the trainee, in which the virtual walking environment information includes a background constructing a virtual space and a walking training object appearing in the virtual space, and the gait training object includes a virtual obstacle for disturbing the walking movement of the trainee according to a preset level of difficulty or a gait inducing object for inducing gait of the trainee with a predetermined stride length.