The invention provides a complete-wheat lactating sow feed and a compounding method thereof. The complete-wheat lactating sow feed is prepared by crushing and mixing the following ingredients in parts by weight: 500 to 650 parts of wheat, 0 to 100 parts of rice bran, 30 to 100 parts of wheat bran, 50 to 200 parts of soybean meal, 0 to 100 parts of mealies alcohol grains and solvend, 0 to 50 parts of soybean oil, 0 to 20 parts of soyabean lecithin, 1 to 3 parts of L-lysine hydrochloride, 0 to 1.5 parts of DL-methionine, 0 to 1.5 parts of threonine, 0 to 3 parts of valine, 0 to 3 parts of isoleucine, 1 to 15 parts of mountain flour, 1 to 15 parts of calcium hydrophosphate, 0 to 5 parts of potassium chloride, 0 to 5 parts of baking soda, 0 to 5 parts of sodium chloride, 0.6 to 1 part of VC phosphate, 0 to 0.4 part of VE, 0.2 to 0.5 part of vitamin premixing agent, 0 to 2 parts of choline, 2 to 3 parts of trace element premixing agent, 0.2 to 2 parts of probiotics for feed, 0 to 1 part of ethoxy quinoline, 0.5 to 3 parts of physiological conditioning agent, 0.5 to 2 parts of mycotoxin adsorption agent, 0.2 to 1 part of wheat-type composite enzyme and 1 to 3 parts of coating acidifying agent. By adopting the feed, the application potential of the wheat at the lactating sow feed stage can be developed on the basis of guaranteeing the reproductive performance of the lactating sow, the tension supply of the corn can be alleviated, the economic benefit can be guaranteed, and a differential method can be provided for the enterprise.