The invention discloses a quantitative calculation method for a nutrition recipe. The quantitative calculation method comprises the following steps: collecting a preset number of finished dishes obtained after multiple dishes are processed, and recording the content of each nutrient of each dish, so as to form a fish nutrition database; dividing the dishes into four types of foods including vegetable dishes, meat dishes, auxiliary meat dishes and staple foods; carrying out data fitting by virtue of a global optimization method according to the content and food nutrient reference intake of eachnutrient of four types of foods, so as to obtain recommended nutrient intakes of the vegetable dishes, the meat dishes, the auxiliary meat dishes and the staple foods in each meal; measuring food density; and calculating a recommended area of the foods in each meal. According to the calculation method, a reasonable scientific reference can be provided for the quantitative meal taking of a user. The invention further discloses a nutritional and healthy dinner plate. The volumes of four volume regions of the dinner plate are determined according to the quantitative calculation method, so that the quantitative meal taking of the user can be guided, and the recipe rules of use sites of the dinner plate are not limited.