Abstract: The scattered outcrops of the Late Creraceous(95Ma), end Creraceous (69Ma), and the Oligocene(67-65Ma)basalitic rocks occur in the Laoshan Yanshanian granitite intrussives, eastern China. The rock types are alkaili-basalt, basanite and tholeiite, respectively. The alkai1i-basalt and basanite are all characterized by higher contents of LILE and LREE, with(La/Yb)N=25.5～46.6, depleted in Nb, Ta, Zr, Ti, and enriched in Ba, Rb, Th, as compared to those of the Cenozoic alkaili-basalt in North China The Sr, Nd isotopic ratios of basanite are 87Sr/86Sr=0.705517, Nd/ Nd= 0.572777. Both alkaiti-basalt and basanite should be derived by partial melting of an older mantle wedge that formed by the Early Mesozoic subduction of the Yangtze plate beneath the North China plate. Compared to alkaili-basalt and basanite, the tholeiite has lower contents of total trace elements, LILE and LREE, and with (La/Yb)N=4.7～6.4. Their typical ratios of trace elements axe similar to those of EM1-OIB 87Sr/88Sr=0.706054～0.706146; 143Nd/144Nd = 0.572387～0.512392. They should be originated by partia1 melting from the “metasome” -the lithospheric mantle metasomatised by the rising asthenospheric fluid. The intrusions of different kinds of basalts may reflect the dynamic process in the area of gradual crustal extension, thinning, and asthenospheric elevation from Late Creraceous to Eogene.