The present invention analyzes the swallowing phenomenon, and develops a food product that is easy to eat or easy to drink. The present invention is provided with: an oral cavity modeling unit (10) that forms an oral cavity model (11) an organ characteristic setting unit (20) that sets the organ characteristics of each oral cavity organ an organ motion setting unit (30) that sets the motion of each oral cavity organ a food product physical property setting unit (40) that sets the physical properties of a food product an input unit (81) that inputs a mock food product (41) into the oral cavity a motion analysis unit (50) that analyzes the motion of each oral cavity organ and the behavior of the mock food product (41) in the oral cavity model (11) using a particle method an evaluation result recording unit (83B) that, from the analysis results, records the evaluation results of ease of eating or ease of drinking of the food product a food product prototype result recording unit (83C) that records the results of prototyping by setting production conditions as appropriate in a manner so as to have physical properties of the food product considered suitable on the basis of the evaluation results and a production condition determination unit (84) that, on the basis of the prototype results recorded in the food product prototype result recording unit (83C), determines the production conditions that cause the physical properties of the food product to be the physical properties determined to be suitable by a physical property determination unit (70).La présente invention analyse le phénomène de déglutition et développe un produit alimentaire qui est facile à manger ou facile à boire. Cette invention comprend : une unité de modélisation de cavité buccale (10) qui crée un modèle de cavité buccale (11) une unité de définition des caractéristiques des organes (20) qui définit les caractéristiques de chacun des organes de la cavité buccale une unité de définition du mouvement
