Appropriate Greenhouse Gas (GHGs) mitigation action has become a promising concern because of its feasibility and sustainability. This article reviews mitigation approaches taken by European Union's electricity sector to promote appropriate reduction in large developing country. From an applicable and integrated aspect, it examines Emission Trading Scheme (EU ETS), carbon tax, Clean Development Mechanism, Joint Implementation, green electricity market, carbon capture and sequestration, and energy efficiency. Then the successful experiences and lessons on this case are identified. The former include: allow diverse approaches coexistence, establish ancillary service system, and make carbon market serve for electricity market. The latter contain that price fluctuates inappropriately, obligation is distorted, no banking for allowances operated in the first period, and part of abatement approaches conflict mutually. Based on these results, this article proposes a framework of combinatorial mitigation actions which is characterized as integral, collaborative and appropriate reduction. It is composed of: i) construct intensity-based carbon market; ii) make diverse approaches collaborative; iii) build synergy between mitigation approaches and electricity market; iv) enhance carbon management and auditing system; and v) reform aging power plants with low carbon technologies. Although numerous challenges lie ahead, this framework has the potential to reduce GHGs from electricity industry extensively and sustainably.