The invention provides a method for analyzing matching of a displacement viscoelastic particle oil-displacing agent and a formation pore throat. In the method, a displacement system filtering performance evaluating device is adopted. The method comprises the following steps: placing an aqueous solution of the viscoelastic particle oil-displacing agent in a container of the displacement system filtering performance evaluating device; calculating the radius of the pore throat according to a permeability and pore throat radius relational expression; determining the size of a filtering membrane; placing the filtering membrane in a filtering membrane gripper; starting the displacement system filtering performance evaluating device; researching filtering conditions and grain size change when the viscoelastic particle oil-displacing agent passes through the filtering membrane under different pressures; and determining a matching relation between the viscoelastic particle oil-displacing agent and the pore throat. By the method for analyzing matching of the displacement viscoelastic particle oil-displacing agent and the formation pore throat, analysis research of compatibility of the viscoelastic particle oil-displacing agent (PPG) and the formation pore throat is realized successfully, and a reliable technical basis is provided for accurate optimization of the viscoelastic particle oil-displacing agent (PPG) used for different oil reservoir features.