In the energy storage field, metal (e.g., Li, Na, Zn, Al)–air batteries are viewed as promising energy suppliers thanks to their unique properties, such as high energy density and environmental friendliness. By providing space to support the reactions taking place in these metal–air batteries, the electrode material plays an important role in realizing the practical application of these metal–air batteries. Among the range of developed electrode materials, chemically derived graphene (CDG) has demonstrated to be a highly promising material. This chapter discusses the application of CDG as electrode material for metal–air batteries. The special focus of this chapter is the development and application of CDG in Li–air batteries, including experimental observations, electrochemical mechanism analysis, etc. Additionally, the utilization of graphene in other metal (e.g., Na, Zn, Al)–air batteries is also briefly discussed.