Even though the urbanisation has brought progress in human civilisation and comfortable life, it has also resulted in an imbalance between human development and ecological development, causing an exponential increase in natural resource exhaustion and waste production. To realise coexistence between nature and mankind in the city and establish healthy, comfortable, convenient, and technology-enabled living spaces for people in the city without compromising the ecological environment, the concept of eco-city development is proposed. In this study, a questionnaire survey regarding key success factors for urban environment development from the perspective of eco-city was conducted on the general public in Fujian Province of China. Totally 500 questionnaires were distributed and 388 solid samples were returned with a solid return rate of 78%. According to the analysis results of the returned questionnaires, among the three dimensions of eco-city development, the most important one is 'cyclical metabolism of the city', followed by 'self-sufficiency' and 'mutually beneficial coexistence'. Moreover, among the 12 evaluation indictors of the three dimensions, the five most important indicators are: resource recycling, regenerative resources, natural resources, proper treatment, and benign modulation. Based on the findings of this study, suggestions are made in the hope of providing assistance in the realisation of eco-city development.