In order to reduce mechanical injury during harvesting the lotus roots,Elian No.5 with moisture content of lotus rhizome ranging from 82.78%-86.69% was used.Compression test for lotus rhizome pulp,segments and the whole lotus,bending and stretch test for joints of lotus roots was conducted with the TMS-protexture analyzer and the RGM-3005 accurate micro-controlled electronic universal testing machine.The results showed that the compressive strength of lotus rhizome pulp was 0.908-1.750 MPa.The elastic modulus was 0.451-2.529 MPa.The values of both compressive strength and elastic modulu of pulp closed to edge were bigger than that of core along the same direction.The value of elastic modulu along axial was bigger than that of radial in the same segments,indicating that lotus belongs to anisotropic materials.The average value of joints’ bending strength from the first to the second was 1.337,1.227,and 1.153 MPa,respectively.The average value of joints’ stretch strength from the first to the second was 0.546,0.560,and 0.551 MPa,respectively.There was a positive correlation between bending force and diameter,stretch force and diameter.It will provide theoretical basis for studying water erosion parameters of lotus root with digging machine.