Abstract: In order to improve soil physical conditions of land consolidation region, a field experiment was designed to study the effect of biochar addition on soil physical characteristics. The biochar addition treatments (0, 7.5, 15, 30 and 45 t·hm^-2) were set to study the influence of biochar on soil bulk density, saturated hydraulic conductivity, water-stable aggregates, soil water holding capacity and other indicators. The results show that (1) The soil bulk density decreased by 1.67%-8.19% with biochar treatments and when the biochar application rate was >30 t·hm^-2, the soil bulk density was significantly decreased. (2) When compared with CK, >0.25-0.5 mm macro soil aggregates was increased by biochar application treatments, while the >5 mm macro soil aggregates and MWD decreased. (3) The application of biochar increased the water retention capacity by adjusting the soil water release capacity, but higher application of biochar could only slightly increase soil wilting water content. Therefore, it was suggested that the best application rate of biochar to be about 15 t·hm^-2 in land consolidation region, which could improve soil water stable macro-aggregates (>0.25-0.5 mm) and soil water release capacity.