NOVELTY - Bacterial strains of Bacillus species preserved under preservation number CGMCC No. 5971, Rheinheimera tangshanensis preserved under preservation number CGMCC No. 5972 and Wickerhamomyces anomalus preserved under preservation number CGMCC No. 5975, are new.    USE - For producing cellulose additive used as cellulose ester film for optical purpose (claimed).    ADVANTAGE - The cellulose additive preparation method does not pollute the environment, directly converts waste liquid into organic fertilizer, realizes zero discharge and zero pollution, provides biological treatment process to protect cellulose additive, as compared with the traditional chemical method has low production cost and high economic benefit, saves energy and is environment-friendly.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing cellulose additive involving forming bacterial liquid of the above bacterial strains by configuring composite bacterial aqueous solution according to the following weight ratio of the bacterial liquid: Bacillus species:Rheinheimera tangshanensis:Wickerhamomyces anomalus of 2-3:1-2:2-3, taking herbal raw materials, cutting into sections, putting into soaking pool and allowing them to swell, preparing seal coat of fiber by crushing and/or grinding biodegradable raw materials, soaking solution of raw materials into the prepared bacterial liquid, taking the biodegradable raw material from bacteria liquid, draining, steam sterilizing, drying the sterilized raw material for the first time period to form fiber, fine grinding second section of fiber bundle to make fiber beam be separated into single fiber, screening, filtering after a period of grinding, forming slurry after the second fine grinding of the fiber bundle, and then grinding to make it into single fiber, soaking the prepared fiber in warm water, drying, sterilizing, and putting the sterilized fiber into cellulose additive.    DESCRIPTION OF DRAWING(S) - The figure shows flow chart illustrating method for production of cellulose additive.