Folk knowledge in natural resources of the Ha Nhi people in Lai Chau' is a collection and introduction of the folk knowledge system in relation to natural resources of the Ha Nhi people who are living in area of Muong Te district, Lai Chau province. The main content of the book includes: Overview of the Ha Nhi people in Muong Te district, introduction to main features of ethnic name and history, natural - social - economic and cultural conditions of the living area of the Ha Nhi people. Belief of the Ha Nhi people towards nature and habits in management of forest-land and water resources of the Ha Nhi people in Muong Te. Knowledge in exploitation of the forest, land and water resources of the Ha Nhi people in Muong Te. Basic changes in management and exploitation of natural resources nowadays.