The invention provides a method for binding value-added service charges of a mobile special purpose terminal, a charging method and a charging system, which rebuild a structure for binding charges while providing a value-added service for the mobile special purpose terminal, add a payment binding management platform, and are used for establishing a binding relation of the value-added service charges between the mobile special purpose terminal and a mobile terminal in a cross-region range. When the mobile special purpose terminal needs to obtain the value-added service, the payment binding management platform authenticates the mobile special purpose terminal, and then, a value-added service platform provides the value-added service for the mobile special purpose terminal via the payment binding management platform; and the payment binding management platform, according to the set binding relation, indicates a home BOSS (Business Operation Support System) of the mobile terminal to charge on the value-added service from the mobile terminal bound with the mobile special purpose terminal. The binding method, the charging method and the charging system implement bound charging on the charges of the value-added service between the mobile special purpose terminal and the mobile terminal in the cross-region range, and can charge different value-added services of the mobile special purpose terminal with various charging forms.