Disclosed is a sliding module for a sliding-type portable terminal, which is adapted to provide one side of a sliding-type housing with dual elastic force for easy opening/closing operation. The sliding module for a sliding-type portable terminal having a main housing and a sliding housing adapted to slide on the main housing while facing the main housing includes a coupling portion formed on a side of the main housing; a guide member coupled to the coupling portion so as to guide a sliding movement of the sliding housing; and a dual elastic member fastened to the sliding housing while facing the guide member, the dual elastic member providing elastic force in a direction of movement of the sliding housing when the sliding housing is slid and in a direction perpendicular to the direction of movement of the sliding housing.