The invention provides feed for larval coccinella septempunctata. The feed includes the following raw materials: egg, raw pork liver, water, milk powder, oat and yeast powder. The preparation method of the feed includes: (1) firstly cutting the raw pork liver into strips with a cutter, and then performing mashing into mud; (2) adding boiling water to soak the oat to soft; (3) adding the raw materials into a beaker, stirring the materials evenly with a stirrer, additionally weighing and adding agar and water into a pot, putting the pot on an electromagnetic oven to melt the agar, cooling the agar, then pouring the molten agar into the evenly stirred materials in the beaker, then fully stirring the substances, performing subpackaging in a culture dish, conducting sealing with a sealing film,and putting the product into a refrigerator for preservation. The invention has the advantages that after application to feeding of larval coccinella septempunctata, the feed can make the weight, pupation rate and eclosion rate of the larval coccinella septempunctata approach the level of those fed by aphids, is more beneficial to the maturation of larvae to adults, also the preparation method ofthe feed is simple, and is easy for large-scale operation, and the feed is easy for storage and large-scale popularization.