1. A service management method for use in an electronic device, comprising: providing a record, wherein the record comprises at least one first event and a plurality of possible probability parameters corresponding thereto and each possible probability parameter has a weight corresponding to the first event; collecting device status information regarding information of current status of the electronic device, user operation behavior information and event triggering information through a data collector; evaluating a first evaluation value according to the device status information regarding information of current status of the electronic device, the user operation behavior information and the event triggering information and the possible probability parameters and respective weights of the record; and inferring whether the first event reoccurs based on the first evaluation value and a threshold value; wherein the first event reoccurs and a service corresponding to the first event is performed when the first evaluation value has exceeded a threshold value, and wherein the service management method further comprises: collecting device status information regarding information of current status of the electronic device, the user operation behavior information and the event triggering information through the data collector after the service corresponding to the first event is performed; evaluating a second evaluation value according to the device status information, the user operation behavior information and event triggering information of the electronic device and the possible probability parameters and respective weights of the record; and inferring whether the first event is finished based on the second evaluation value and the threshold value, wherein the first event is inferred as being finished when the second evaluation value has exceeded the threshold value; and automatically terminating the performance of the service corresponding to the first event when inferring that the first event is finished.