The invention relates to a manufacturing process of charge control agent and carbon powder containing the charge control agent. The technical scheme includes steps of generating action between azo compound and salicylic chrome complex which is used as a complexing agent in an aqueous medium, and synthesizing a specific azo complex containing chrome. The manufacturing process is characterized by providing the complex synthesis engineering. The carbon power comprises the charge control agent obtained from the manufacturing process. The invention provides the manufacturing process simply obtaining the charge control agent, and the carbon powder with excellent characteristics of charged electrification, wherein the carbon powder neither can fly to scatter, nor descends as bottom ash, and the carbon powder can obtain high-definition images stably within a long period of time without affection of application environmental variation, such as temperature, humidity and the like.