Membership card system is generally composed of membership card, reading and writing equipment of membership card and membership card management software. It mainly includes the main functional modules such as member card issuing, member stored value, member consumption points and point redemption. Through systematic statistical analysis of member consumption data, data information such as members with high loyalty and consumption level and products with high sales volume can be obtained, so that managers can dynamically and scientifically adjust market strategies, promote enterprise member loyalty, optimize product categories, and increase enterprise sales and profits.