Improving　energy　efficiency　is　one　of　the　most　effective　ways　to　reduce　energy　waste　and　achieve　carbon　neutrality,　but　it　may　also　bring　the　energy　rebound　effect　and　thus　fail　to　achieve　the　desired　energy　conservations.　In　this　paper,　we　examine　the　energy　rebound　effect　of　Beijing　at　the　level　of　overall　economy,　industry　and　sector　based　on　the　Cobb-Douglas　production　function　and　the　idea　of　Solow　residual,　so　as　to　clarify　the　true　impact　of　technological　progress　on　energy-saving　target.　Results　suggest　that:　(1)　The　overall　economy　of　Beijing　shows　partial　rebound　effect　in　most　years　and　appears　backfire　effect　in　some　years,　but　the　degree　of　the　rebound　effect　has　been　gradually　mitigated;　(2)　The　energy　rebound　degree　of　the　tertiary　industry　is　higher　than　that　of　the　secondary　industry　on　the　whole,　but　the　rebound　effect　of　the　secondary　industry　fluctuates　more　obviously;　(3)　Energy　savings　at　the　sector　level　is　also　not　ideal,　and　in　most　cases,　sectors　with　low　energy　efficiency　have　a　higher　rebound　effect　than　sectors　with　high　energy　efficiency.　Based　on　these　results,　suggestions　are　provided　to　alleviate　the　energy　rebound　effect　of　Beijing.