Considering a different perspective from an operability, in order to provide a technology which performs support of creating a User Interface (UI) screen suitable for each hypothetical user, a UI creation support system that performs support of creating the UI screen for respective users, a UI creation support system (1) is provided which includes an acquisition unit (10) which acquires an effect degree information indicating the degree of effect when processing through the UI screen is erroneously performed, and a UI configuration determination unit (20) which determines a configuration of the UI screen for the respective users based on the degree of the influence specified by the effect degree information.