So far, the management of irrigation systems have basically met the actual requirements because of fundamental reforms in institutions and policies, especially since the promulgation of the Law on hydraulic works in 2017. However, limitations in the management have been remained as the current financial policy still supports farmers in the indirect form through enterprises and water user organizations. This leads to unguaranteed financial sustainability of these organizations. Therefore, it is necessary to develop a sustainable financial policy so that operational organizations of irrigation systems can afford their activities. This article analyzes and synthesizes international experiences in the development and application of sustainable finance policies in irrigation management. Principles and approaches to sustainable financing learnt from international experience are recommended to Vietnam