To provide an ecological bag capable of achieving reduction of plastic shopping bags for protecting environment and resources inexpensively and practically by using IC chips by a simple structure and to provide an information management system utilizing the same because the conventional point service for the purpose of reducing plastic shopping bags is not popular because of the cost for construction of a system or facility necessary for the issue of point cards, the cost to be borne by a shop if a prescribed amount of money is discounted from the purchase price according to the accumulated points, or the manpower necessary for the operation on the shop side accompanying the point service, or such inconvenience that a user has to carry a plurality of point cards if different point services are adopted by different shops.

An IC chip mounting medium, in which an IC chip having a recording function to record the number of times of using of an ecological bag is mounted, is attached to the ecological bag.