(System development environment: Windows Myeclipse (server side) Eclipse (mobile client) mysql database system client and server side architecture technology: interface layer, business logic layer, data layer 3 layers respectively, MVC design thinking! Data communication format between server and client: XML format (about transmission query record set) and json format (about transmission of single object information) Program function: the administrator can log in the system to manage family member information, income type information, expense type information, payment method information, income record information, and expense record information. Family member information: member number, member password, last name, title, calling, birthday, connection qq, email address, connection telephone, connection address and photo. Income type information: income type number, income type title, expense type information: expense type number, expense type title, payment method information: payment method number, payment method title, income information: income number, income person, income origin, income type, payment method, income amount, income date, padding information, expense information: expense number, expense person, expense use, expense type, payment method, expense amount, expense date, padding information)