The invention discloses a bean curd production system. The bean curd production system is provided with a soybean milk production line and a soybean milk filling line, wherein a soybean milk boiling device is arranged at the tail end of the soybean milk production line, the soybean milk production line is connected with a mixer, a mixing cavity with an adjustable volume is formed in the mixer, boiled soybean milk is quantitatively injected into the mixer, soybean milk streams impinging one another are formed in the mixing cavity, a coagulant is injected into the mixing cavity simultaneously in proportion and introduced into the impinging area of the soybean milk streams, and then the soybean milk streams impinging one another form turbulence and drive the soybean milk and the coagulant to be mixed; the mixed soybean milk is output from the mixer and enters the filling line, a bean curd packaging box conveying chain is arranged on the filling line, a follow-up filling dispensers matched with the conveying chain are arranged above the conveying chain, and the filling dispensers are driven to fill bean curd boxes with the soybean milk along with moving of the conveying chain.