Abstract: The tectono-thermal evolution since Triassic for the northeastern Sichuan Basin was modelled by using combined vitrinite reflectance and apatite and zircon (U-Th)/He dating methods. Corresponding to a transformation of the foreland basin during the Late Triassic to the interior cratonic basin in the Cretaceous, the paleo-heat flow was 51-66 mW/m2 during the Early Triassic. It decreased gradually to the present-day's 44.5 mW/m2. However, the heat flow increased a little at the late Cretaceous and Paleoene due to the late Yanshanian tectonic movement. At the same time, the apatite and zircon (U-Th)/He age dating revealed an uplifting of northeastern Sichuan Basin at the Late Cretaceous and the erosion could be up to more than 3000 m. The apatite and zircon (U-Th)/He ages can also provide the details of cooling history for the study area.