The invention discloses a base station energy-saving method and apparatus. An indoor baseband processing unit (BBU) determines that there is no business in a coverage of all connected radio remote units (RRU), boundary RRUs are opened, and non-boundary RRUs are closed; and when it is determined that there is business access at the boundary RRUs, the non-boundary RRUs are opened. The invention also discloses a base station.