Abstract: The ritual system is closely related to material, and the funeral part of three Confucian classics, i.e., Yili , Zhouli and Liji, regulates that a large number of raw plant materials should be used in funeral utensils and clothing. This paper sorts out the relevant chapters of Yili and Liji , putting forward that the making of funeral utensils should choose common floristic materials according to local conditions, and follow two principles of "using the nature of plants" and "expressing aspirations through natural objects", so as to carry forward the natural and humanistic attributes of plants and meet the needs of ethical life. Among them, "using the nature of plants" directly considers the physical properties of floristic materials in making ritual vessels, which reflects the pursuit of harmony and unity between man and nature."Expressing aspirations through natural objects" introduces the attributes of plants into the human world, expressing emotions and bidding farewell to relatives through the cultural implications of plants, which is the concrete and subtle presentation of the thinking mode of "analogy" in traditional Chinese philosophy.