Abstract: In order to evaluate the physical properties of paper-making process reconstituted tobacco comprehensively, the principle of traditional and zero-span tensile strength testers were analyzed, and the test results and the sectional microstructure of samples were compared. The results indicated that:1) The mean tensile strength of reconstituted tobacco base-sheet samples was 0.21 kN/m in transversal direction (TD) and 0.48 kN/m in longitudinal direction (LD), and their mean breaking lengths were 2.54 mm in TD and 3.11 mm in LD. 2) The mean zero-span tensile strength of dry reconstituted tobacco base-sheet samples was 18.08 N/cm in TD and 28.31 N/cm (about 36.1% higher than 18.08 N/cm) in LD. After wetting treatment, the tensile strength decreased significantly both in TD and in LD. 3) The mean fiber length index of samples was 0.32 in LD, it was roughly 68.75% higher than 0.10 in TD. 4) The bonding power of fiber significantly differed between TD and LD, the fiber bonding index was 5.23 in LD and 1.61 in TD. The test results of traditional tensile strength tester agreed with those of zero-span tensile strength tester, however the latter reflected the physical and fiber properties of paper making process reconstituted tobacco more comprehensively.