Lacustrine sediments can record environmental changes,therefore analyzing their geochemical characters can reconstruct palaeoenvironment around lake basin. This paper makes in detail a geochemical analysis of lacustrine sediments from a core profile collected in the lacuster of Angulinao Lake, Bashang Plateau, North China. The environmental changes are confirmed by variations in concentrations of chemical elements such as Mg, Ca, Fe et al. and variations of  Mg/Ca, Ca/K, Fe/Al et al.. Combining with the varve chronology, Holocene environmental changes around Angulinao Lake can be speculated. In 8507—7453a BP, the climate was a little dry and cold, but turned to warm and humid; In 7453—4617a BP, the climate was warm and humid, but the short stage of arid exists(5137—4617a BP); In 4617—574a BP, the climate was cold and dry, but the stronger cold and dry climates arose at 4617a BP and In 1924—2494a BP. Since 574a BP, climate drives to humid in the earlier stage, but turns to dry since 383a BP. The climate changes around Angulinao Lake coincided with the other areas in North China at the same time.