This study concerns blends of cellulose/chitin to develop a new type of suture from the blends. Cellulose/chitin solutions were prepared in dimethylacetamide(DMAA)/LiCl, and the solutions were spun. The tensile properties of fibers spun from the blends were improved comparing with the fiber from chitin alone. The properties of the fiber from the blend were comparable to those of traditionally well-known sutures. This promising fiber as a suture showed compatibility to living-body system and completely absorbed in 90 days after subcutaneous imbedding.