As a global jurisprudential movement rooted in the US policy circle and legal academia, there is growing evidence that law and development in the 21st century is beginning to transform from a “movement” to a “field”. The main purpose of this chapter is to elaborate on four sub-fields of today’s law and development. As an applied field, aid-funded law and development policy is a by-product of the Western rule of law promotional industry and aims at exporting rule of law assistance programs to recipient countries. As a scholarly field, the intellectual styles of the law and development movement consist of mixed characteristics of policy action, scholarly autonomy, theoretical construction and scientific inquiry. As an academic field, interdisciplinary-based law and development studies encompass a wide range of subtopics relating to the issues of economic, political and social development from both macro and micro perspectives. As a scientific field, fact-based law and development research involves the legal indicators movement, the rule of law assessment movement and the diffusion of legal knowledge. The key purpose of this chapter is to appeal to law and development scholars in the Global South to join hands and make efforts to explore context-sensitive local legal knowledge, by first concentrating on the new right to development under the policy support of UN post-2015 Development Agenda.