The invention provides a hazelnut, chocolate and milk compound protein drink and belongs to the technical field of vegetable protein drinks. The drink comprises the components, by weight, of 30-80 parts of milk, 3-7 parts of white sugar, 0.2-6 parts of hazelnut sauce, 1-5 parts of grain powder, 1-3 parts of grated hazelnuts, 0.1-3 parts of cocoa powder, 0.1-2 parts of cocoa butter, 0.1-0.5 part of compound emulsification thickening agent, 0.01-0.1 part of essence and the balance of water. The invention further provides a production technology of the drink. According to the hazelnut, chocolate and milk compound protein drink, various nutritional ingredients of the milk, hazelnuts, grain powder and the like are added, so that the milk protein and the hazelnut protein are reasonably matched, dietary fiber is added, the product stability problem can be solved by adding small amount of emulsification thickening agent, the technology is suitable for current vegetable protein general technologies, and the requirement of stable product shelf life under different packages is met.