On the occassion of celebrating the fortieth anniversary of foun- ding new China the NISWC has obtained greater advancement and signi- ficant results in many subjects during only thirty years,such as soil,cro- sion rule and its prediction and forecasting,the evaluation and reasonable utilization of soil and land resources,the theory and technics to recover vegetation,the system and base to increase yield in dry land farming,the comprehensive harness of soil and water loss,etc.The paper epitomizes the recent state of each research work in six sections.