In order to minimize the environmental pollution created by the traditional disposal methods of dredged marine sediments, a method was proposed to solidify the dredged sediments for beneficial use. The basic mechanical behavior of the solidified dredged sediments was studied. A testing program was con ducted on a dredged marine sediment taken from Dayawan, which consisted of tests on specimens prepared at different cement contents and curing times. The test results show that the unconfined compressive strength increases linearly with the cement content and the failure strain reduces with the cement content by following a power function. The physical meanings of parameters, such as solidification coefficient and minimum cement content were also discussed. The results showed that the solidified dredged sediment can be used as a fill material. An economized solidification method developed from this theory can provide basis for future engineering application.