The invention aims to solve the problem of direct solar radiation on the surface of the earth caused by ozone holes and provides a floating device for filling the ozone holes. The floating device comprises a gas bag and power devices, wherein each power device comprises a bracket, motors, propellers, airflow inductive switches, a GPS locator, a storage battery and a photovoltaic thin plate; gas valves are arranged at the bottom of the gas bag; waterproof reflective layers are arranged at the outer surface of the gas bag; and the power devices are fixedly mounted at the circumference of the gasbag by the brackets. The floating device for filling the ozone holes is low in production costs and easy for production and processing and has the advantages of floating in the stratosphere for a long time, directly reflecting the solar radiation, effectively mitigating the greenhouse effect, balancing the airflow by virtue of the self-bring power devices when being affected by the strong horizontal airflow, facilitating the position monitoring for meteorological staff by virtue of the GPS locator and obtaining the energy required for work completely from solar energy.