▎ 摘　　要

NOVELTY - Spinning oil agent comprises soluble elastomer. USE - Spinning oil agent is useful for preparing spinning fiber with self-adding elasticity and elastic adding method. ADVANTAGE - The spinning oil agent is suitable for preparing spinning fiber with self-elastic action by one-step method, which effectively improves the production efficiency, simplifies the spinning fiber preparation process and reduces the cost. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: 1. a method for elaboating for spinning fiber, which involves using the spinning oil agent and spraying the spinning oil agent on the surface of the spinning fiber formed synchronously in non-uniform manner; 2. a method for preparing a self-elastic spinning fibre by adding elasticity.