While traditional dike projects exert social and economic benefits，they also have some impact on the original ecological system. With the development of society and economy，the awareness of ecological environment protection has been gradually strengthened during the construction of dike projects. Hollow hump ecological slope protection is a new type of slope protection structure proposed for the needs of ecological dike construction and has good wave-eliminating performance and ecological effects. This paper uses wave section physical model tests to research the design method of hollow hump ecological slope protection. The research result shows that：1）Under the action of regular waves or irregular waves，the thickness D required for the slope protection to meet its stability is related to the breaking parameter ξp of the incident wave. 2）The value of D/H increases linearly with the increase of ξ0.5p，and calculation formula of the stable thickness of the hollow hump ecological slope protection is proposed. This structure has been applied in the channel regulation project in Chaohu Lake of the Yangtze-to-Huaihe Water Diversion.