The geological evolution of tectonic plates can be divided into several stages according to the theory of plate tectonics: continental rifting, incipient ocean formation, oceanic crust subduction (ocean death), and collisional orogeny. Global orogenic events mainly consist of accretionary and collisional types. However, in many cases, these processes are often not continuous or complete. Intracontinental orogens can arise when tectonic inversion occurs during continental rifting. A case study of the Songpan- Ganzi tectonic belt, spanning the Middle Permian to the Late Triassic, exemplifies this phenomenon. Initial rifting occurred in the Late Permian, characterized by coarse clastic deposits in the Sandaoqiao Formation, including brecciated limestone and conglomerate. These deposits are overlain by Dashibao basalt, indicating a similar tectonic setting to the Permian Panxi Rift. The Songpan- Ganzi tectonic belt evolved to a post- rift stage during the Middle to late Triassic and received debris from multiple sources to form thick sandstone and siltstone. The stress field began to reverse in the Norian- Rhaetian stage, leading to intense folding and deformation of the Triassic sedimentary layers, accompanied by large- scale felsic magma intrusion. No oceanic crust or subduction zone formed during the evolution from continental rifting to orogeny. The cessation of rifting dynamics and the reversal of the stress field may be controlled by two factors: remote compression from the Indosinian orogeny and the suspension of deep magmatic convection. This proposed evolutionary model is helpful to a deeper understanding of plate tectonics and the mechanisms driving continental dynamics.