During the past decade China has undertaken major efforts to improve the efficient and sustainable utilization of its water resources. The Chinese-German Financial Cooperation in the water sector has complemented these efforts with the successful implementation of innovative projects on waste water treatment and water reuse. This bilingual brochure has been commissioned by the Chinese Ministry of Finance and the Kreditanstalt für Wiederaufbau (KfW). It presents particularly successful water projects in China and illustrates achievements and lessons learnt of relevant stakeholders and actors involved. Furthermore, it provides an overview about the current situation and future challenges for a sustainable development of the Chinese water sector.