In China, eco-city projects are not city-wide scale projects and they do not cover a whole municipality. They are often developed as new zones, or new districts nearby to or within the municipality of main urban regions. These can be regarded as experimental projects, satellite towns, or simply developed as new urban expansion zones or new districts to a larger municipality. In this chapter, we explore six cases of macro scale projects representing the current practice of eco-development at the city level in China. These cases are classified into three categories, namely: (1) local initiatives; (2) national flagship projects; and (3) international cooperation projects. Each case study is evaluated based on their masterplan, layout, eco-strategies and green technologies.