In recent years,nanobubbles have become a focal point of academic research.Unlike macroscopic bubbles,nanobubbles possess unique properties that have led to their widespread application in various fields such as medicine,aquaculture,and mineral flotation.Particularly,the ultra-high stability of nanobubbles,which can persist for hours or even months,has become a hot topic.However,a systematic summary of the development history of nanobubbles is still lacking.Addressing this gap,this paper outlines the development history of nanobubbles and discusses the research progress on their stability.The paper also highlights the applicability and limitations of existing theories and summarizes the impact of nanobubble stability on flotation processes.This study aims to expand the potential research value of nanobubbles and provide new directions for further studies on their stability.