The present invention relates to an IoT-based platform and system for providing a product recommendation service by using date of birth information extracted from user information. An embodiment of the present invention proposes a system comprising: a management server for operating at least one of a website and a mobile app which provide a product recommendation service; and a user terminal for executing at least one of the website and the mobile app, wherein the management server receives personal information of a first user, which is input through the user terminal, configures characteristic information on the basis of the personal information, configures a recommended product corresponding to the characteristic information, and controls the recommended product to be displayed through the user terminal.