The invention belongs to the technical field of animal feed processing and particularly relates to total mixed ration fodder for mutton sheep at the fattening stage. According to the total mixed ration fodder, alfalfa, corn, distillers' grains, soybean meal, malt sprout, corn fiber, cottonseed meal and molasses are mixed and smashed and then are sieved by a 40-mesh sieve, and mixed powder A is obtained; stone powder, calcium hydrophosphate, bentonite, baking soda, sodium chloride, sodium sulfate, montmorillonite, ammonium chloride, monensin, 0.5% of compound premix feed and the mixed powder A are put in a mixer to be mixed and conditioned, the conditioned material is granulated, granular fodder is obtained, packaged and graded, and a finished product is obtained. By comparison with a conventional feeding and fattening method, the marketing time of fattening lambs fed on the prepared fodder is advanced by 15-25 days, the mutton sheep averagely grow 300 g or more every day and the daily average feed intake is 2.5 jin in the process when the fattening lambs are fattened from 17.5 kg to 65 kg or higher, so that the cost of a breeding farmer is substantially reduced, and the benefits are remarkable.