with rapid development of socialist market economy, market competitions also become increasingly fierce. One of important guarantees for enterprise development is capital. However, in current stage, it is very hard for enterprises to borrow money from banks, especially for small and medium-sized enterprises which are caught in the plight of financing difficulty. Our state adopt encouragement attitude for small and medium-sized enterprises. But banks worry capital recovery problem during providing loans for small and medium-sized enterprises. Therefore, small and medium-sized enterprises must seek other financing approaches in order to develop. Supply chain financing is a good approach. However, supply chain financing can achieve maximization of manufacturers' benefit under certain conditions. This paper mainly discusses manufacturers' optimal strategy in supply chain financing to provide reference for enterprise financing and promote enterprise development. In most cases, small and medium-sized enterprises cannot gain banks loan, because they lack assets guarantee. The emergence of supply chain financing can effectively solve this plight. When enterprises conduct supply chain financing, supply chain partners can provide guarantee for enterprises and the enterprises can apply for loans from banks. This solves financing difficulty of small and medium-sized enterprises. In recent years, many Chinese commercial banks have carried out supply chain financing services. The whole supply chain financing system contains manufactures and retailers. Only when retailers meet manufacturers' financing conditions can manufacturers provide financing guarantee for them.