The invention discloses a repeater monitoring method and device, and aims to solve the problem that repeaters belonging to a signal source cell cannot be monitored effectively in the prior art. The method includes acquiring measuring reports of the signal source cell; judging whether the measuring reports containing TA values larger than a TA threshold or not according to the preset time lead TA threshold and the acquired TA values contained in the acquired measuring reports; if so, selecting the plurality of measuring reports containing the TA values larger than the TA threshold from the acquired measuring reports; acquiring a monitoring result of the repeater of the signal source cell according to the measuring reports.