Abstract: In view of working environment and characteristics of shearer of coal mine underground,a design scheme of hardware and software of embedded black box of electrical haulage shearer was proposed,which was designed by use of ARM microprocessor.The black box is used for recording running data and working environment parameters of the shearer,and has important effect to establish fault diagnosis system of electrical haulage shearer and improve reliability and maintainability of electrical haulage shearer.The actual application showed that the black box has reliable performance and can meet applying requirements.