Soil structure is one of the important factors of soil fertility.This paper deals with the effect of the application of organic fertilizer,deep ploughing and the utilization of soil transported from other place on the formations of soil structure.These measures not only increased waterstable granular aggregates,but also incteased the microaggregates and temporary aggregates.The solum structure of soil layer of 0-50 cm was changed due to the variation of soil structure properties,three layers of different structure were formed.Therefore the changes in soil structure induced the change of the regime of water and air in soil,the total pores approximated to 60% of which big pores were about 15%,soil aeration were improved significantly below the soil layer of 20 cm,the soil waterholding capacity was increased in 3-5%.The improvement of soil structure may play an important part in providing a better soil nutrient condition and stimulating the activity of soil microbes of the subsoil.