To provide a financial commodity sale support system capable of checking whether or not a sold financial commodity is adapted to an investment purpose of a customer by controlling the investment purpose of the customer as a history.

This financial commodity sale support system supports sale business of a financial commodity, and is provided with an investment purpose information registering means for registering the investment purpose of the customer on a database 120, a customer attribute storage means for storing a customer attribute including a breakdown of an investment of the customer in the database 120, an investment purpose suitability checking means for checking suitability of the breakdown of the investment in the customer and the investment purpose, and a data control means for controlling the investment purpose registered in the investment purpose information registering means and the breakdown of the investment stored in the customer attribute storage means with every customer.