The invention relates to a material withdrawal and air drying mechanism used after PCB board washing, It consists of a rack and a distribution control box, the rack is provided with a conveying groovewhich is matched with the PCB product, a plate washing and tin brushing device and a baking device matched with the products on the conveying groove are sequentially arranged below the conveying groove, a feeding device for cooperating with the product on the conveying groove is arranged above the conveying groove. The end of the conveying groove is butted with the drying device of the product through an overturning conveying device which is matched with the conveying groove. The plate washing and tin brushing device comprises a brush motor and a brush drum which are arranged on the machine frame and mutually matched, and the brush drum is sleeved with a brush which is matched with the product on the conveying groove. The invention adopts the feeding device cooperated with the conveying groove to realize the feeding of the PCB board, and at the same time, flips the conveying device at the end of the conveying groove, thereby realizing the automatic material reclaiming and transferring, improving the material reclaiming and transferring efficiency of the PCB board, avoiding the scratch produced by manual reclaiming and placing, and ensuring the good product rate after the PCB boardis washed.