To provide a digital modulation wireless relaying device that can grasp a accurate transmission state by a BL (Before Limiter) tone monitor function.

In the case that an output of a detector 6 controls an oscillated frequency of a VCO 9 to change a tone color of a monitor tone generated from a speaker 10 and to monitor a level of a received signal R, when a digital modulation system is changed, a reception signal level changeover circuit 70 placed between the detector 6 and the VCO 9 can change an input voltage to the VCO 9 accordingly so that no effect appears on a monitor of a transmission line margin due to the change of the digital modulation system.