Several physical properties of black soil sampled from Lishu, Dehui, Yushu areas in Jilin black soilregion were determined after soil samples were collected. The aim was to research the degraded manifestations ofphysical properties of black soil and its temporal-spatial variation characteristics compared with the unculturedblack soil and the results of the second national soil survey. The results showed that the content of sand and silt in-creased from north to south in soil surface layer in the investigated area, but the clay and bulk density decreased.There was no obviously changing trend in soil hardness and three phase ration. Compared with uncultured black soilin Gongzhuling, soil hardness of surface layer and plough pans was improved in three areas, the solid phase ratioand gas phase ratio increased while the liquid phase decreased. Compared with the second national soil survey, thebulk density decreased. The main reason was probably that people gradually pay attention to the organic manure in-put and the ratio of straw returning. In addition, it was also relevant to the field operating frequency reduction sincesoil survey.