The invention provides a material taking and assembling integration device for a sealing ring. The integration device comprises a material taking assembly which is formed by assembling a material taking gun and a material taking head. A material taking station and a material taking head transfer station are arranged below the material taking assembly. The material taking assembly moves between the material taking station and the material taking head transfer station. The material taking assembly is sleeved with the sealing ring from the material taking station. The sealing ring moves up to the outer surface of the material taking gun along the material taking head. Before assembling, the material taking assembly is moved to the material taking head transfer station, and the material taking head is disassembled from the material taking gun passively; and afterwards, the material taking gun and the sealing ring on the material taking gun are moved above a product to be assembled, the material taking gun and the product are in vertical butt joint, and the sealing ring is moved along the material taking gun passively downwards and installed on the product. The integration device solves the problem of contradiction needs of material taking and assembling for the material taking assembly structure. The integration device is ingenious in overall structure, low in cost, easy to use, stable in grabbing and convenient to maintain.