The invention discloses an identification method for dynamic association degree of chemical flooding injection production wells. The identification method for the dynamic association degree of the chemical flooding injection production wells includes that (1) simultaneously recording an actual chemical agent injection concentration value of an injection well and an actual chemical agent output concentration value of each production well according to a time interval t during the time period T from the chemical agent injection to the test starting; (2) fitting the actual chemical agent output concentration value of each production well according to the actual chemical agent injection concentration value and a calculated chemical agent output concentration value of each production well to obtain dynamic association indexes of the injection well connected with each production well in the well group; (3) drawing a chemical flooding inter-well dynamic association graph; (4) calculating variable coefficients of dynamic association indexes, and confirming the chemical flooding inter-well dynamic association type. The identification method for the dynamic association degree of the chemical flooding injection production wells fully uses the dynamic information of the oilfield injection production wells, the data are easy to acquire, the operation is easy to perform, and the application is broad; the identification method provides the basis for identifying the fluid channeling situation of chemical agent solution in the stratum, guiding the production allocation, injection allocation, profile control and water plugging of each chemical flooding injection production well and the like.