This paper studies the evolution of occupation-industry employment structure of China.The industry employment structure is studied within the Casells-Singelmann's classification of six sectors,and the factor which influences the structure change is decomposed into three parts: the industry shift effect,the occupation shift effect and the interaction effect,using the structure change model.The model expands one dimension to dual dimension view that includes occupation and industry at the same time.We find that the industry employment structure is a dominant effect,but the occupation structure change is deeply influencing the employment structure change,and its importance is increasingly presenting in the recent years.