To investigate the effects of no straw returning（CK）, straw deep-ploughing returning to field（SF）, straw deep-ploughing returning to field with swine manure（ZF） on soil physic-chemical properties and maize yield, a three-year field experiment was conducted in northeastern China. The results showed that the treatments of SF and ZF significantly reduced soil bulk density, while significantly increased the soil water capacity and total porosity,the increase of total porosity was mainly due to the decrease of capillary porosity and the increase of aeration porosity. SF and ZF treatments also had an important effect on improvement of soil physic-chemical properties, such as the increase of total porosity, soil organic matter, total N, total P, total K, available N, available P and available K,among which ZF treatment had the most significant effect. Returning straw and swine manure to the field showed a significant positive effect on maize yield. The yield increased by 2.61%-5.04% and 5.81%-8.94% in the last two years under SF and ZF treatments.