1. A resource conflict reducing method, comprising:determining, by a first user equipment (UE), N available resources from S resources detected at the UE, wherein S is a quantity of resources that are indicated by resource configuration information obtained by the first UE, and wherein S is an integer greater than or equal to 1;
performing at least one of:
determining, by the first UE and in response to the first UE meeting a first preset condition, M resources according to the N available resources;
determining, by the first UE and in response to the first UE not meeting the first preset condition, and after an interval of preset duration T, the M resources; and
sending, by the first UE, data to at least one second UE by using the M resources;
wherein N is an integer greater than or equal to 0 and less than or equal to S, and M is an integer greater than or equal to 0 and less than or equal to N, and wherein T is determined according to at least one of a quantity N of available resources, a quantity NS of unavailable resources, a proportion N/S of the available resources, a quantity c of conflicts of the first UE, a conflict time w, a service priority Q of the first UE, or a priority of the first UE.