The invention discloses a ripening technology in fine dried noodle production and a ripening device which has simple structure and easy operation control. The ripening technology comprises the step of putting dough sheets in an insulating and moistening cover (1) for ripening, and is characterized in that the time is controlled to be 15-25 min, the temperature is controlled to be 25-32 DEG C and the relative humidity is controlled to be 80-90 percent during the ripening. The ripening device comprises a transport unit connected with a composite calender and a continuous calendar, wherein the continuous calendar is arranged on a stand (4) and arranged in the insulating and moistening cover (1), and a heating and moistening device is arranged in the insulating and moistening cover (1). The invention has the advantages that the internal gluten structure of the dough sheets after ripening has stable state and has flexibility, viscoelasticity and very good tractility so as to be convenient for being processed by the following procedures; the heating and moistening device is simple, and compared with heating and moistening by steam generated by a boiler, the operation control is convenient and also pollution to the environment is reduced.