The invention is applicable to the technical field of computers, and provides a tire theoretical model parameter determination method, device and equipment and a storage medium. The method comprises the following steps: acquiring the half length of a grounding mark, a first characteristic parameter and a second characteristic parameter of a tire; based on the first tire theoretical model parametersolving model, determining a first tire theoretical model parameter according to the half length of the grounding mark and the first characteristic parameter; and solving a model based on the secondtire theoretical model parameter, and determining a second tire theoretical model parameter according to the grounding print half-length, the bristle rigidity and the second characteristic parameter.Based on the method provided by the embodiment of the invention, a solving model is established for each to-be-identified model parameter, and each model parameter is solved step by step, so that therandomness of a result is reduced compared with overall identification and step-by-step independent solving in the prior art, the accuracy of the model parameters is improved, and the extension capability and the prediction capability of a tire theoretical model are effectively improved.