Abstract: The inacrogravity experiments of oscillatory covection in liquid bridge of halffloating zone were carried out by using the 800 meter drop facility in the Japan Macrograv-ity Center,The coordinated measurements of typical physical quantities such as internaltemperature,flow field,edge variation of free surface boundary and free surface wave wererealized.The experimental results comprise the traiisition of oscillatory covection fromEarth’s gravity to microgravity environment and show that the oscillatory feat...