The invention discloses a weight management combination for a lunch and a dinner respectively. The weight management combination is characterized by including a lunch fat-reducing composition and a dinner substitute composition, the lunch fat-reducing composition includes an amylase inhibitor, a lipase inhibitor and a fat burning promoter, the amylase inhibitor includes a white kidney bean extract, the lipase inhibitor includes EGCG, and a lipid absorption conversion inhibitor includes chitosan oligosaccharide; and the dinner substitute composition is prepared from the following components inparts by weight: 25-40 parts of casein, 12-35 parts of a whey protein, 10-15 parts of medium chain triglyceride powder, 20-25 parts of a dietary fiber, 2-5 parts of skim milk powder, 2-5 parts of complex gum and 1-3 parts of decavitamin and mineral substances. According to the weight management combination, the lunch and the dinner are organically combined, collocation is reasonable, pursuit of food can be realized, the purpose of weight loss can also be achieved on the basis of satisfying nutrition demands, and the fast diet weight management combination is provided for a great deal of lose weight people.