Northern Sichuan is located adjacent to the Hanzhong Basin to the east, connects to the Chengdu Plain to the west, extends to the southeastern edge of the Qinghai-Tibet Plateau to the north, and encompasses the upper reaches of the Jialing River to the south. This region served as a crucial transportation corridor between the Central Plains in the north and the southwestern borderlands, making it a key area for cultural integration and interaction between northern and southern China. In the first half of the 7th century, Buddhist cliff sculptures surged in various locations, including Guangyuan, Bazhong, Jian'ge, Zitong, Mianyang, Langzhong, and Maoxian. These sculptures, which exhibit similar niche forms and artistic styles, mark the beginning of large-scale standardized grotto construction in the Sichuan-Chongqing region. Their significance lies in helping understand not only the north-to-south transregional dissemination of grottoes, but also the establishment of local tradition in the southwest. This article examines the construction models of Buddhist cliff sculptures in northern Sichuan from the late Sui to the early Tang Dynasty through spatial distribution, subject matter, and inscriptions. Drawing on existing research on sites announced to public and historical documents, it explores the forces that contributed to the flourishing of these grottoes and sheds light on the complex social and cultural interactions between the Central Plains and the Sichuan-Chongqing region.