The invention discloses a service matching method for mobile communication, which comprises the following steps: adding each order of each long access number as a long access number node in sequence from high order to low order to establish a long access number multi-branch tree; adding each order of each characteristic string as a characteristic string node in sequence from high order to low order to establish a characteristic string multi-branch tree; searching the long access number node furthest matched with a sent number in the long access number multi-branch tree; and in the characteristic string multi-branch tree pointed by the matched long access number node, searching the characteristic string node furthest matched with instruction contents, and if the characteristic string node is not found, returning to the upper layer of long access number nodes to search. The invention also discloses a service matching system for mobile communication. The method and the system can improvethe processing efficiency of user service request on the basis of realizing accurate matching of service instructions.