In 2015, the National Tourism Administration announced that it would "change the life of tourist toilets"; in 2018, the second three-year "toilet revolution" was required to tilt towards poor villages with tourism resources, so as to alleviate the problem of imbalance in the number of toilets in regions, urban and rural areas, and scenic spots. The quality level standard of tourist toilets. It is urgent to build an innovative development mechanism for tourist toilets that integrates supply and demand layer, concept layer, planning layer and target layer. Based on the method of design management, this study puts forward the core value proposition of "mayfly" through the methods of background data collation, internal correlation analysis, scenario dimension diagram, storyboard, etc., and studies and formulates the content of target users, pricing methods, marketing strategies, commercial canvas, etc. Proposed a reasonable solution to the "toilet crisis" faced by rural tourism.