The invention discloses a construction site thin and long single sheet transfer process and construction site thin and long single sheet transfer process equipment. The process comprises the following steps: 1, prefabricating or transforming a plurality of portal-type supports; 2, arranging the portal-type supports by using a forklift, allowing a flat car to enter the portal-type supports and to eject the portal-type supports, and delivering the portal-type supports to a place beside the thin and long single sheets; 3, hoisting the thin and long single sheets to the top of the portal-type supports, allowing the flat car to eject the portal-type supports and the thin and long single sheets, and transporting the portal-type supports and the thin and long single sheets to a designated point; and 4, after the flat car transports the thin and long single sheets to the designated point, lowering the height of the flat car to place the portal-type supports on the ground, withdrawing the flat car from the front or back of the portal-type supports, and completing the transfer of the whole thin and long single sheets. Each portal-type support comprises a cross beam, upright posts and bases; the two ends of the cross beam area arranged on the top of the upright posts; and the bases are arranged at the bottom ends of the two upright posts respectively. According to the process, the portal-type supports are used for temporary support and transfer, so that the on-site transfer and support are combined; and the operation is simple, the sheet outlet efficiency is high, and the cost is low.