A catalogue of stellar masses and ages for 696,680 red giant branch (RGB) stars, 180,436 primary red clump (RC) stars, and 120,907 secondary RC stars selected from the LAMOST DR8. The RGBs, primary RCs, and secondary RCs are firstly identified with the large frequency spacing and period spacing. The purity and completeness of both RGB and RC samples are better than 95% and 90%, respectively. The typical uncertainties of stellar mass and age are, respectively, 10% and 30% for the RGB stellar sample. For RCs, the typical uncertainties of stellar mass and age are 9% and 24%, respectively.