Abstract: Services Overall Capacities (WESSOC). Through the literature review and previous research outcomes, it clarifies that the WESSOC include four types and eight dimensions water-related ecosystem services, and also proposes 18 key indicators related to physical forms. The interception of greywater is the premise of WESSOC while water self-purification is its core. Based on them, other six water-related ecosystem services can also be provided. Through the case study of Tian’ao Villlage in Shengsi, this paper suggests that an effective mechanism of well-designed physical forms of rural areas is to achieve the increments of "water environment – water ecosystem – water landscape" through a series of improvements of water-related physical forms. This paper contributes technical support and parameters provision to the planning, design, construction and management of rural areas.