The invention relates to a large-area automatic sunward-operation clothing airing control device which comprises an automatic sunward-operation control system and a clothing airing device, wherein the clothing airing device comprises a main rail, reversing rails, main rail moving blocks, reversing rail moving blocks, magnetic sliding blocks, a main rail screw rod, reversing rail screw rods, a main rail motor and a reversing rail motor, the main rail motor and the reserving rail motor are controlled by the automatic sunward-operation control system, the automatic sunward-operation control system comprises a travel switch, a light-sensitive sensor, a wireless temperature-humidity sensor and a single chip microcomputer, the light-sensitive sensor is used for detecting the position of sunlight, the wireless temperature-humidity sensor is used for detecting the temperature and the humidity of clothing, and the single chip microcomputer is used for receiving light-sensitive sensor signals and wireless temperature-humidity sensor signals. The large-area automatic sunward-operation clothing airing control device can regulate the airing position of the clothing according to the position of the sunlight, can move the dried clothing to a position, which does not influence the airing of other clothing, and has the advantages of simple structure, low cost and high convenience in popularization.