The invention relates to a living organic nano-liquid oil displacement agent for NGI, which is a product researched and developed for increasing the oil recovery rate by profile control and oil displacement in an offshore oil and gas field and an onshore oil field. Especially, it is the latest generation of patented products for improving oil recovery, which is developed according to the geological characteristics of low permeability and ultra-low permeability oilfields, the origin of crude oil and the physical properties of crude oil, and is the only green environmental protection product at home and abroad.