The invention provides a method and a device for determining random access parameters. The method for determining random access parameters includes the following steps: acquiring random access basic parameters and/or compensation parameters of random access basic parameters as well as the mapping relationship between the random access basic parameters and/or compensation parameters of random access basic parameters and the unified access control categories UACC; and determining the RACH (Random Access Channel) parameters used in the access process according to the random access basic parameters and/or compensation parameters of random access basic parameters and the mapping relationship. The problem on how to determine the introduced RACH parameters in a multi-service, multiple-demand andmulti-wireless-environment scenario in NR (New Radio) in related technologies is solved. RACH parameters can be determined for terminals with different services, different demands and different wireless environments in an NR system, and different access effects are achieved.