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In this paper, the rape(Brassica junica) was used as test materials, and two factors including water content and cadmium stress were tested, comprising three water treatments(70%~80%、60%~70% and 50%~60% of relative moisture content) and six cadmium treatments(0、5、10、15、20、30 mg·kg-1), to find out the effects of different soil moisture and cadmium concentrations on physiological characteristics and yield of rape. The results showed that with the increase of soil water content, the plant height, biomass, photosynthesis and yield of rape were significantly promoted; Under the tested Cd concentrations, there were no significant difference in rape growth physiology and yield index, which indicating that rape had a certain resistance to cadmium in cadmium contaminated soil.