The present disclosure relates to a method, device and system for indicating and obtaining a number of PUCCH repetitions. The method includes: configuring a plurality of physical uplink control channel (PUCCH) resources for a user equipment (UE) through radio resource control signaling; determining a number of repetitions corresponding to each PUCCH resource of the plurality of PUCCH resources by using a predefined rule; determining a current number of repetitions of a PUCCH transmission by the UE; determining a current resource index number of a resource for the PUCCH transmission by the UE corresponding to the current number of repetitions; and sending the current resource index number to the UE, to indicate the current number of repetitions, so that UE decodes the received current resource index number and determines the current number of repetitions.