Germplasm resources are the material basis for the cultivation of new varieties and the strategic resources to ensure national food security. There are many germplasms with excellent characteristics, due to the limitation of identification technology, most of them have not been excavated and utilized. The progress of high-throughput phenotypic analysis technology provides the basis and conditions for the large-scale phenotypic identification of germplasm resources, and provides a new perspective for the mining and utilization of excellent characteristics of germplasm resources. In this study, based on the time-series canopy coverage data of 1,129 soybean germplasm collected by unmanned air vehicle in the early stage, The two spatial or temporal dimensions of max canopy coverage (MaxCC) and canopy cover increase speed (CCSpeed) were statistically analyzed to reveal the dynamic growth characteristics and differences of germplasm resources from different ecological regions in the field. The results showed that under the planting environment of Nanchang, Jiangxi Province, the MaxCC and CCSpeed of 1,129 soybean germplasm resources had rich phenotypic diversity, and the phenotypic variation coefficients were 16.09 % and 49.35 %, respectively. In terms of traits, the germplasms with oval or oval leaves and limited podding habits had higher canopy coverage and faster ridge closure speed. In terms of geographical origin, soybean germplasms from southern ecological regions had higher MaxCC and faster CCSpeed than soybean germplasms from other ecological regions. Finally, 21 excellent germplasms with MaxCC above 0.9 and the CCSpeed above 0.3 were selected. These germplasms are suitable for planting in the southern region. They can quickly CCSpeed at the early stage of growth and development, effectively inhibit the growth of weeds, thereby reducing the cost of field management, and can quickly accumulate more biomass at the early stage of growth, so as to achieve high yield at the late stage of growth. It provides a material basis for cultivating new high-yield soybean varieties with excellent characteristics and is of great significance for soybean production.