The present work reports an initial engineering approach for fabricating lysozyme-bound regenerated cellulose fiber and film. Glycine-esterified cotton was dissolved in an ionic liquid solvent 1Butyl3methylimidazolium Chloride (BMIMCl) in which lysozyme was activated and covalently attached to cotton cellulose through an enzymatic conjugation between its carboxyl groups and glycine celluloses amino groups. The resulting solution was extruded for fiber/film formation in a water bath. After performing a bicinchoninic acid (BCA) protein assay, quantity of attached lysozyme to cellulose fiber/film was evaluated. The study exhibited that a synthesis of lysozyme conjugation on cellulose in BMIMCl could be completed in a control manor, resulting in a cellulose solution suitable for fiber/film production. It was also found that lysozyme could be successfully immobilized onto the cellulose fiber and film regenerated from solution spinning with a reasonable amount ranging from 197.6 to 343.7 μg/mL.mg.