To create a module of high independency, maintainability and reusability by promoting module structuring.

A module structuring support device for supporting structuring of a module constituting software comprises a characteristic measurement part 2 for measuring characteristic data on blocks in the module, and a characteristic determination part 3 for forming module partitioning guideline data for presenting a user with guidelines for module partitioning according to the measured characteristic data, and presenting the user with the guidelines for module partitioning according to the formed module partitioning guideline data.