The space-air-ground investigation system has achieved remarkable results in the identification and monitoring demonstration work of geohazards. Leshan City in Sichuan Province, China, is a key zone for preventing and controlling geohazards within the demonstration area. The high vegetation cover and concentrated rainfall lead to the high concealment and sudden occurrence of geohazards in Leshan City, necessitating the identification and monitoring of geohazards in this city. Hence, under the guidance of the space-air-ground investigation system, this study explored the identification and monitoring of geohazards in the highly vegetation-covered mountain areas within Leshan City. The results indicate that 75 geohazards were identified in the study areas, with 51 confirmed through field verification, suggesting an identification accuracy rate of 68 %. Among them, 36 geohazards were newly identified. The geohazards were primarily concentrated in two areas, where 37 were identified, representing 72.5 % of the total geohazards in the study areas. Concerning techniques for identifying geohazards at different deformation stages of slopes, stacking-interferometric synthetic aperture radar (InSAR) can be employed to detect geohazards at the initial deformation stage of slopes. For slopes experiencing significant deformation within the detection range of InSAR, techniques like stacking-InSAR, high-resolution optical satellite imagery, and light detection and ranging (LiDAR) can all be used for geohazard identification. For highly vegetation-covered mountain areas, the LiDAR technique, which can be utilized to remove the effects of surface vegetation, combined with expert knowledge, can be used for geohazard identification. Additionally, remote sensing techniques face challenges in effectively identifying concealed geohazards.