The invention relates to an aluminum alloy surface processing feeding intelligent grouping and discharging intelligent sorting method and system. The aluminum alloy surface processing feeding intelligent grouping method comprises the steps that technological data in digital labels of workpieces to be grouped in a feeding area are extracted; the technological data of the workpieces to be grouped and the technological data in the digital labels of a grouping area in the grouping zone are subjected to polling and matching; station numbers of the workpieces to be grouped are defined as material fetching data, and the station numbers which are matched successfully and located in the grouping area are defined as storage data; a machine selecting regulating crane extracts the workpieces to be grouped from the fetching stations corresponding to the fetching data, and places the workpieces on the grouped stations corresponding to the storage data, and feeding and grouping are completed. According to the method and system, feeding intelligent grouping and discharging intelligent sorting can be achieved, the problems that after feeding is completed, workpieces cannot be classified and organized automatically, and accordingly the production efficiency is lowered are solved, and the problems that after discharging is completed, products cannot be sorted automatically, and accordingly the production efficiency is lowered are solved.