The invention relates to a compound feed for improving thickness of head, neck, back and tail meat of Lepomis gulosus and a preparation process thereof. The compound feed comprises the following components by mass ratio: 12-15% of fish meal, 12-18% of chicken powder, 20-25% of soybean meal, 7-10% of soy protein concentrate, 4-9% of rapeseed meal, 20-23% of flour, 2-5% of squid visceral ointment, 1-3% of fish oil, 3-5% of soybean oil, 0.8-1.2% of dihydrogen phosphate, 0.1-0.2% of multivitamin, 0.1-0.2% of composite minerals, 0.03-0.05% of bile acid and 0.5-1% of taurine. According to the growthand nutrient requirement of the Lepomis gulosus, the process ensures the feed protein addition amount through the reasonable combination of the animal and vegetable protein raw materials, and uses the oil source and the sugar source to reasonably improve the feed protein and energy ratio, and more protein is saved for fish growth, which effectively improves feed protein utilization efficiency anddeposition rate; the growth performance of the Lepomis gulosus and the body shape are improved, so that the head and neck meat of the Lepomis gulosus is convex, the back meat and the tail meat are thick.