Mill sound load analyzer capable of resisting external environment noise interference

The invention discloses a mill sound load analyzer capable of resisting external environmental noise interference. A mill sound sensor (1) is sequentially connected with a mill sound amplifying unit (2), a subtracter (6), an amplifying and filtering unit (7) and a display output unit (8), and an environmental noise sensor (3) is sequentially connected with an environmental noise amplifying unit (4), a signal delay unit (5), the subtracter (6), the amplifying and filtering unit (7) and the display output unit (8); the grinding sound amplifying unit (2), the environmental noise amplifying unit (4), the signal delay unit (5), the subtracter (6), the amplifying and filtering unit (7) and the display output unit (8) are assembled in the host shell (9); the milling sound sensor (1) is arranged near the ball mill; the environment noise sensor (3) is arranged on the outer side of the abrasion sound sensor (1). According to the invention, the mill sound signal and the environmental noise signal of the mill are respect