Taking the proposed dam with cemented sand，gravel and rock in Xiyin reservoir located at Qiuluxi of Putian as an example，the limit calculation model for static rigid body is generalized，and the shear resistance coefficient of the dam and the vertical normal stress of the upstream and downstream are calculated and analyzed according to the foundation surface and the filling surface with cemented sand and gravel at different elevations.The results show that the vertical normal stress at upstream face would decrease in the elevated location of CSGR layers in the dam when at the same water level.When at the same location of CSGR layers in the dam，the vertical normal stress at upstream face would downsize with the raised water level.The shear coefficient at bedrock surface of dam and the normal stress at the dam heel would decline with the raised water level，but the normal stress at the dam toe would rise up with the raised water level.Corresponding measures should be taken to monitor and dect the bedding effect of CSGR dam during the construction and operation of the reservoir.