Vortex is a common flow phenomenon in nature．Typhoon is one of the most devastating disasters in nature，and its essence is also a vortex．The typhoon demonstration device based on the controllable fluid vortex aims to make a low-cost research device that can be used for vortex research，and realize the simulation of typhoon．Under the premise of controllable vortex size and movement，the single vortex and Fujiwhara effect are studied through the OPENMV machine vision technology to track and collect image information，and the real- time movement tracking of the vortex is obtained，which is measured by image analysis technology．