The invention discloses a processing system for edge grabbing and dispensing functions. The process comprises the following steps of A1, moving to an edge grabbing shooting position; A2, adjusting the brightness of a light source; A3, carrying out binarization processing; A4, conducting particle treatment; A5, setting an edge grabbing area; A6, adjusting edge grabbing parameters; A7, testing the edge grabbing effect, displaying OK, saving the parameters, quitting a program, displaying NG and returning to check the parameters; A8, moving to an initial position, editing a single edge grabbing instruction, moving to a next position, editing a single edge grabbing instruction, and repeating the actions to an end position; A9, after OK is displayed, the instructions are taught and saved; and A10, accomplishing program editing. The dispensing precision is high, the edge grabbing operation is correct and complete, the reject ratio is low, the cost is low, and the good market application value is achieved.