Amid growing global efforts in biodiversity conservation, the protection of the giant panda in China has shifted from species-focused management to a holistic approach to ecosystem restoration. As one of the first designated national parks, the Giant Panda National Park (GPNP) plays a pivotal role in ecological conservation. Based on multi-source data from 2002 to 2022, this study examines the spatiotemporal evolution of giant panda habitats, rest spaces, and bamboo forests, and constructs an integrated ecological corridor system to evaluate changes in ecological connectivity and support conservation planning. The results show that: (1) Overall suitability remained stable, with increased habitat density in the Qinling and Daxiangling ranges, though bamboo resources in Daxiangling remained scarce; (2) Corridors were concentrated in Minshan, Qionglai, and Qinling, exhibiting shortdistance and high-density patterns, while Daxiangling showed weaker connectivity; and (3) Declining ecological connectivity in some areas necessitates optimizing corridor structures, limiting disturbances, enhancing buffer zone management, and promoting the restoration and integration of source patches. This study provides a scientific foundation for optimizing ecological corridors and conserving giant panda habitats while promoting the coordinated management of habitat, rest space, and bamboo forest resources. It also contributes a replicable framework for advancing landscape-scale connectivity in global biodiversity conservation efforts.