The invention relates to wireless communication system, discloses a analysis method and its system for uplink channel abnormity in wireless communication system, preferably detects uplink channel state, enhances analyzability and maintainability of base station. The invention adopts total receiving power of broad band and multipath energy accumulation and performs combined state detection for uplink channel, also provides concrete judging standard of combined abnormity detection adopting broad band total receiving power and multipath energy accumulated sum.