The invention relates to a spinning method and device, in particular to a method and device for producing resin having a higher glass transition temperature, particularly a polyarylene sulfide fiber.The spinning method and device have the advantages that by adding the fiber into an oil bath storage tank, uniform heating and the accurate control of the heating temperature during stretch of the fiber can be maintained, the damage to equipment and quality of the fiber in the oil bath tank due to the high temperature transmission of a heating medium is avoided, and the problem of insufficient utilization of the heating medium caused by the reduction of vehicle driving and stopping efficiency and the drastic changes in the flow of the heating medium when the equipment is started or stopped isavoided.