A robot-arm telemanipulating system that presents an operator auditory information converted from a part of information on operating status of the robot arm (hereinafter referred to as “telemetry data”) transmitted from a distant position from the operator, so that a burden imposed on the operator can be alleviated. The telemanipulating system includes a sound source for simulatively generating an operating sound of the robot arm under telemanipulation, capable of variably controlling at least one of key, volume and tone of the operating sound by sound source control data input from outside; a telemetry data analyzing unit for analyzing telemetry data transmitted from the robot arm, and controlling the sound source by generating sound source controlling data corresponding to a load amount applied to the robot arm; and an audio output unit for presenting the operator the operating sound generated by the sound source in a form of auditory information.