The invention provides a cold season nutrition-balanced compound yak block, each kg of the block consists of the following raw materials of: 0.3-0.6g of zinc sulfate, 0.2-0.4g of copper sulfate, 0.01-0.02g of sodium selenite, 0.02-0.25g of potassium iodide, 0.02-0.04g of cobalt chloride, 10-20g of magnesium oxide, 70-100g of calcium hydrophosphate, 80-120g of puffing corn seed powder, 50-80g of bran, 20-40g of rapeseed meal, 50-100g of high-energy fat powder, 20-40g of urea, 150-250g of salt, 200-300g of bentonite, 30-60g of portland cement, 80-150g of molasses and 20-40g of vitamin premix. In addition, a technology for producing the block is provided, and better combines a chemical solidification technology and a mechanical pressing technology; and according to the seasonal variation characteristics of forage grass feed and nutritional statuses during yak raising, through taking the compositions and quantities of earth mineral elements which are ingested by the yak into consideration, the technology optimizes and adjusts the formula of the yak nutrition block, and balances the yak nutrient element supply. A curing agent has wide select sources and is low in price, and the compound yak block has balanced nutrition and larger density, is reasonable in feed intake, and is suitable to the purpose of nutrient element supplement for grazing yaks of different production levels in cold seasons.