Abstract: In order to define the effect of stubble mulch tillage on soil degradation of farmland, the approach adopted in this paper is to compare the effects of3kinds of cultivation ways (GC, DC, CT) on soil temperature, soil moisture content, soil respiration rate and soil organic carbon content in oats farmland. The results obtained in this research were as follows: compared with CT, GC and DC could decrease soil temperature for 8.00% and7.00%, respectively; meanwhile, the decrease of soil temperature increased with stubble height. GC and DC could increase soil moisture content, compared with CT, GC could increase soil moisture content by 24.60%. GC and DC could both remarkably increase soil respiration rate at different growth stages of oats; GC soil respiration rate was the highest, reached32.71%. The GC soil organic carbon content was notable to CT. Oat production performance was: GC＞DC＞CT. Furthermore, GC and DC were significantly higher than CT by40.00% and25.00%. In conclusion, oats no-tillage stubble could increase the soil respiration rate and soil organic carbon content, which had significant effect on increasing yields.