The invention discloses a method, which implements recharging at different locations for mobile prepaid service, based on intelligent network. The method sets SDP of intelligent network outside of SCP. All rechargeable card data of mobile prepaid service are stored in the said SDP. When mobile prepaid service subscriber dials access number for recharging, call is routered to SSP. After analyses signaling number of the call, SSP determines home SCP of it and reports intelligent call to the home SCP. Then, all the recharging procedure is controlled by the home SCP. The home SCP updates subscriber data and rechargeable card state, through interaction with the said SDP. By implementing the invention method, complication of engineering, data management and statistic is reduced and it is easier to expand.
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