The micro-nano aeration machine, also known as a micro-nano oxygenation booster, consists of a pump, a micro-nano bubble generator, a pressure gauge, an aeration head, and some pipe fittings. It is a set of equipment specifically developed for river management and dissolved oxygen treatment. Its principle utilizes nanotechnology to initially compress a large amount of air into a large number of micro-bubbles with a diameter of 0.25mm. Then, through the release system, these 0.25mm diameter micro-bubbles are highly dispersed in a semi-vacuum state between the gas and liquid phases, producing micro-nano bubbles with diameters less than 3μ and nano-bubbles, collectively referred to as micro-nano bubbles. These bubbles are then released into the water to rapidly oxygenate it, achieving the effect of increasing dissolved oxygen in the water.