The invention provides a polarized bistatic MIMO radar parameter estimation method in an impact noise environment based on sparse reconstruction. The method comprises the steps: building a polarized bistatic MIMO radar receiving data model in the impulsive noise environment; 2, carrying out the impact removing preprocessing of snapshot sampling data; 3, carrying out the estimation of transmitting angle parameters of a polarized bistatic MIMO radar through the rotational invariance of a subspace; 4, constructing a sparse dictionary set of the polarized bistatic MIMO radar; 5, carrying out the sparse reconstruction of a receiving angle of the polarized bistatic MIMO radar; 6, judging whether to reach the maximum number of iteration times or not: executing step 7 if the maximum number of iteration times arrives, or else supposing k=k+1, and returning to step 5; 7, obtaining a sparse reconstruction result sk, and obtaining the information of the receiving angle of the polarized bistatic MIMO radar through an index set U, and outputting an estimation result of the transmitting angle and the receiving angle of the polarized bistatic MIMO radar. The method is wider in application range, and can be used for solving actual problems that cannot be solved by a conventional polarized bistatic MIMO radar parameter estimation method.