Through analysis of sandy material sediment sampling from a Tamarix cone with 132 clear sedimentary veins located at the west shore of Lop Nur,the research results are obtained as follows:all of the sandy materials of sedimentary veins in studied section mainly consist of the fine sand that occupies 42.

The paper attempts to reflect the environment change in Lop Nur region by means of measuring the quantity of the Ca~(2+), K~+, Na~+,Mg~(2+) in the layer of the fallen leaves in the deposition sedimentary veins of Tamarix cone, in order to improve the way to study the environment change by studying the deposition sedimentary veins of Tamarix cone.