The invention relates to a construction method of a credit-based
differentiated service excitation mechanism in a
mobile ad hoc network. The method comprises the following steps that: S101, initialization is carried out; S102, a service requester initiates a service query request to all cluster heads; S103, all the cluster heads work cooperatively; on the basis of global credit of the service requester, a workable service
list is returned according to a preset service and credit association rule; S104, the service requester selects a certain service in the service
list according to his / her will; S105, the service requester carries out credit evaluation on a selected
service provider; S106, according to an obtained comprehensive credit value of the
service provider in the credit evaluation process, the service requester carries out comparison between the comprehensive credit value and a credit threshold Rh; if the condition is met, a service request is sent out and a S107 is transferred; and if not, the step S104 is returned to carry out
service selection again; S107, a service providing phase is carried out; and a cluster head of the cluster that the
service provider is located at obtains information of the service provider by monitoring, wherein the information includes dump energy and a completion situation; and S108, after the service is completed, credit updating is carried out.