The invention relates to a disc suspension insulator mechanical property detection tester featured by comprising a cuboid mechanical support frame (1); the front and rear end faces of the cuboid mechanical support frame (1) is respectively fixedly provided with a front panel and a rear panel; the front panel is fixedly provided with a first cheese bolt (21); the portion, extending into the front panel inner side, of the first cheese bolt (21) is connected with an insulator (4) steel cap through a first transfer metal fitting (3); the rear panel is fixedly provided with a second cheese bolt (22); the portion, extending into the rear panel inner side, of the second cheese bolt (22) is connected with an insulator (4) steel foot through a mechanical stress applying device (10), a second transfer metal fitting (8), a mechanics weighing sensor (7) and a third transfer metal fitting (6) in sequence; the disc suspension insulator mechanical property detection tester is simple in structure, andeasy to use and install.