The invention discloses an oiling agent used for silk weaving. The oiling agent consists of the following components in parts by weight: 1-3 parts of sodium alginate, 10-20 parts of bentonite, 10-20 parts of polyving akohol, 1-3 parts of hydroxyethyl cellulose, 10-20 parts of glycerin monoacetate and 80-100 parts of water. Compared with the prior art, the oiling agent has a good lubricating effect, can enable silk to have softness and wettability, greatly enhances the cohesive force among the silk, and keeps the luster.