Objectives:Natural gammaray spectrometry (NGS) and magnetic susceptibility (MS) play an increasingly important role in researching paleoenvironmental and searching for rhythm layers, which are common logging techniques, usually used in drilling and rarely on outcrop profiles.  Three short outcrop profiles containing different sedimentary rocks belong to Taiyuan formation and Shanxi formation in Zibo area of Shandong Province were measured by two portable instruments which can test NGS and MS respectively  Methods: The NGS containing Potassium (K), Uranium (U), Thorium (Th), Uraniumfree gamma ray (CGR) with MS data were measured in single point mode whose sampling distance was 0.12m.The values of Th/K, Th/U, U/CGR were obtained by calculation. NGS and MS characteristics of different sedimentary rocks were researched through data statistics and cluster analysis. Results:The result shows that K and CGR values can distinguish the particle size of different sedimentary rocks in different depositional environment. K and CGR values of fine sandstone are always more than 3.3 and 23 as well as gritstone with less than 3.3 and 23 in continental environment. K and CGR values of limestone are usually less than 1 and 10, and the value of gritstone changes in 1~1.8 and 10~13.2 in marine environment, which were lower comparing the value of gritstone in continental environment. At the same time, K and CGR values of middle—fine sandstone changed in the lower range 1.8~2.3 and 13.2~16.6, as well as argillaceous siltstone with more than 2.3 and 16.6. Conclusions:Combined with the previous research, it was speculated that hydrodynamic force in continental depositing process changed rapidly comparing in marine environment. If the particle size of continental sedimentary rocks was same with that in marine environment, continental sedimentary rocks contained more mud matrix due to the unstable hydrodynamic force condition. The MS would be higher with the increasing of particle size, if the supply of sediments was stable.