Abstract：Graphene oxides have good photothermal efficiency, which can generate a thermal gradient field on the nano scale. The use of graphene oxides deposited on the nano optical fiber surface can be composed of micro heater. Through the infrared light, the micro heater can heat the surrounding liquid, and the thermal microbubbles and ellipsoidal microbubbles are generated on the micro/nano optical fiber, but the ways of their behavior are different. The results show that the thermal microbubbles formed directly on graphene oxide micro heater surface, and when the micro heater is positioned at the gas-liquid interface, ellipsoidal microbubbles are formed on the micro nano optical fiber. The results of this study have deepened the understanding of the physical behavior of microbubbles, and played a role in promoting the development of novel photothermal bubble-based devices.