The invention provides a beta-cyclodextrin derivative complex nucleating agent and application thereof in polypropylene, which belong to the technical field of material high performance and solve the problems of poor modification performance, high cost and the like of a polypropylene beta nucleating agent in the prior art. The beta-cyclodextrin derivative complex nucleating agent is a complex of a beta-cyclodextrin derivative and lanthanum ions, is used for improving the beta-form content and the anti-impact capability of the polypropylene, has simple synthetic process and easy obtainment of raw materials, can induce the polypropylene to generate a higher content of beta-forms and can improve the anti-impact strength of the polypropylene.