Vegetation phenology has been proved to be an important indicator of global environmental change，and the occurrence time of surface phenological events is an important signal of the start and stop of carbon uptake in the carbon cycle of ecosystems. Capturing the key time nodes of plant growth requires continuous observation throughout the growing season，making new methods of phenological observation an important research event. With the continuous emergence of new observation methods such as traditional observation，remote sensing observation and UAV acquisition，vegetation phenology extraction has become a hot topic. It is proved that the use of appropriate observation data and extraction methods is of great significance for the study of surface vegetation phenology in different regions and species.