The invention discloses a method for measuring an association degree of a water-soluble hydrophobic-associated-polymer-type thickening agent. According to the method, an association degree correlation curve of the hydrophobic-associated-polymer-type thickening agent is quantitatively established, so that the association degree of the water-soluble associated-polymer-type thickening agent in a porous medium can be obtained through the correlation curve. After the association degree of the water-soluble associated-polymer-type thickening agent is quantized, and the proper association of the water-soluble associated-polymer-type thickening agent in the porous medium can be researched, so that the oil displacement efficiency of the thickening agent in oil deposit is improved, the product treatment is considered, and a technical scheme is provided for the product treatment of the water-soluble associated-polymer-type thickening agent.