The utility model relates to a cellulose ether apparatus for producing. Including leading rubbing crusher, leading crusher connection mixes quick -wittedly to the raw materials, the mixed machine of raw materials is connected to reation kettle, reation kettle is connected to the washing cauldron, the washing cauldron is connected to the centrifugal separator, the centrifugal separator is connected to the drying -machine, the drying -machine is connected to the product packaging machine. The utility model discloses can be according to the DP of purified cotton, directly according to the directional product of producing required viscosity specification of demand, the condition of many batchs of finished product reblendings of reduce production, very big reduction stock's pressure, guaranteed the stability and the controllability ability of production technology.