GB/T 38924.3-2020 "Methods for environmental testing of civil light and small drone systems, Part 3: High temperature testing" specifies the requirements for high temperature environmental testing for civil light and small drones (takeoff weight 0.25 kg~ 150 kg). This part describes in detail the test conditions, the use of equipment and instruments, the test process and interruption and recovery measures, and the method for evaluating and reporting the test results. The standard aims to evaluate the tolerance of drone systems in high temperature environments and ensure that they can function properly during actual use. The standard applies to all drone systems that may be exposed to high temperature effects, including aircraft and ground stations.