The environment design specialty objectively needs an inclusive framework on its theories and teaching contents because it is a cross-discipline major that links art to science. It can integrate multidisciplinary work and multi scale environmental construction from a basic level. Based on the comments of pattern language theory that combined with behaviors, phenomenology, linguistics and structuralism, the following teaching thinking is presented. 1) With the structured environment derived from the theory of a pattern language, the teaching content can be a structured process which meets the comprehensive demands of project-based teaching; 2) with the observation method of a pattern language, a design approach called experience on sit based on phenomenology should be adapted; and 3) from the existing pattern language to creating new ones, a teaching consideration is presented which encourages creativity from former language imitation.