The invention relates to a Chinese herbal micro-ecologic farmed fish feed suitable for carps in a medium period and a preparation method thereof. The Chinese herbal micro-ecologic farmed fish feed is prepared from the following raw materials: wheat middling, corn germ meal, rice bran, wheat, bean pulp, extruded soybean, rapeseed meal, cottonseed meal, distillers dried grains with soluble (DDGS), fish meal, spray-dried animal blood cells, soybean oil, liquid phospholipid, monocalcium phosphate, 50 percent of choline chloride, 0.04-0.08 percent of 35% Vc phosphate, glossy privet fruit, special compound enzyme for aquatic products, microecologics for aquatic products, and 1.2 percent of a special premix for carps. The Chinese herbal micro-ecologic farmed fish feed is high in pertinence, is especially suitable for breeding and feeding of carps in a medium period, is balanced and complete in nutrient and good in luring property, and has the advantages of enhancing the immunity, the disease resistance and the stress resistance of carps, fully ensuring nutrients necessary for growth and development of carps, achieving the effect of rapid and healthy growth, increasing the feed conversion ratio, alleviating environmental pollution, improving water quality, and maximally protecting nutrient substances from being damaged by high temperature in a preparation process.