In the context of planning priority conservation areas, it is essential to consider the potential risks posed by climate change in order to pay close attention to the dispersal patterns of species under the influence of climate-driven conditions. This research concerns by focusing on the Beijing-Tianjin-Hebei region, a critical area for terrestrial mammals and biodiversity conservation. Employing the innovative Omniscape algorithm, which utilizes future bioclimatic data, topographic diversity data, and land use data, the study models landscape-level connectivity for terrestrial mammals during the mid-century period (2040-2061) under four kinds of climate change scenarios. This approach provides vital insights into how species distributions and connectivity patterns might evolve in response to changing climates. At the regional scale, one of the key findings is the gradual shift of high connectivity areas from plains to mountains due to climate change risks. This shift indicates a need for targeted conservation efforts in these emerging connectivity hotspots. The distribution of these areas is also expected to become more concentrated, emphasizing the importance of focusing conservation resources effectively. At the patch scale, the study uncovers significant differences in landscape connectivity. Forest edges show high connectivity, serving as vital corridors for species movement. Conversely, the connectivity of agricultural lands, particularly those adjacent to forests or grasslands, is notably lower. This disparity highlights the need for careful land-use management around critical habitats to maintain ecological corridors. A total of 51786 km² of priority conservation areas are identified, categorized into protection, optimization, and restoration zones. The protection zone (56.4%) exhibits good connectivity currently and is expected to continue to do so in the future, indicating the effectiveness of existing conservation measures. The optimization zone (38.4%) requires habitat quality improvements to meet future connectivity demands, pointing to the necessity for proactive measures to enhance habitat resilience. The restoration zone (5.22%) faces high climate change risks, necessitating urgent ecological restoration to prevent future connectivity pinch points. Such points could severely impede species movement and survival, underscoring the importance of timely intervention in these areas. By evaluating omnidirectional connectivity under two scenarios in the Beijing-Tianjin-Hebei region, this study provides a scientific basis for climate-adaptive planning in biodiversity conservation. It offers a framework for understanding potential shifts in ecological networks due to climate change and highlights the need for dynamic conservation strategies. These insights are crucial for informing policy decisions and guiding conservation efforts, ensuring the long-term preservation of biodiversity in this significant region.