The landsenses ecology theory combines basic principles of ecology with comprehensive analysis of various factors and perceptions, involves researches of land use planning, construction and management, aiming at sustainable development. The landsenses ecology theory is an important guiding theory for the planning and design of wetland park which is a comprehensive site need to consider both natural and human factors. A landsenses ecological planning and design path of wetland park has been formed by referring to many researches of landsenses ecology theory and wetland park planning in this paper. The paper takes Wangjiatan wetland park in Changyuan city of Henan province as an example to explore the method of wetland park planning and design based on landsenses ecology. The landsenses ecological planning combines ecological principles with physiological and psychological perception to achieve the purpose of sustainable development which involves comprehensive consideration of economic, environmental and social benefits. In Wangjiatan wetland park, the main partition of ecological function is delimited by "Source-Sink" theory. The spatial boundaries are adjusted by the aggregate with outlines mode and consideration of existing facilities, visual effect, regional and cultural characteristics, so as to form the overall spatial pattern of the whole wetland park. The paper combines ecological shoreline development index, Kuang-Ao theory with viewing experience, spatial awareness to create suitable habitats for plants and animals and fine scenery for human. Dominant species and associated species in Wangjiatan wetland park are arranged based on niche width theory and consideration of folk custom and seasonal aspect of plants. Then those plants are designed by near-nature afforestation strategy. As an important part of the nature, human social and economic activities are also planned into the wetland park by using the strategy of light disturbance and integration of landscape with economic benefits based on the principle of moderate disturbance. Besides, the technological park system is established in Wangjiatan wetland park as the internet of things system(IOT) to collect various types of data. This system constitutes a meliorization model of cyclic process of advancement and feedback to promote continuous improvement of the site. By creating the theoretical path, delimiting the spatial pattern, creating the habitat basement, planting the plant population, planning the intervention of human activities, establishing the technological park system, the paper provides a feasible and forward guidance for the application of the landsenses ecology in wetland park planning and design.