Abstract: It is an object of the invention to provide a three-dimensional beauty simulation client-server system which is capable of handling a users face in a three-dimensional fashion and of providing more realistic beauty simulations. This system comprises a shop-based client that obtains and transmits three-dimensional shape data regarding a user, and a server comprising a makeup simulation unit that receives and stores the three-dimensional shape data from the shop-based client and carries out makeup simulation based on the three-dimensional shape data in response to requests from the user, and a data control unit that analyzes the users operation record and generates administrative information.