The invention relates to a cutting-off device, in particular to a uniform sponge strip cutting-off device. According to the technical problem to be solved, the uniform sponge strip cutting-off deviceis provided. To solve the technical problem, the uniform sponge strip cutting-off device comprises a base, a first support, a material storing wheel, sponge strips, a motor, a first belt wheel, a second support, a cam, a second belt wheel, a first belt, a platform and the like. The left side above the base is connected with the first support. The material storing wheel is connected above the firstsupport in a rotating manner. The sponge strips are arranged on the material storing wheel. The motor is installed on the base and located on the right side of the first support. The first belt wheelis in interference fitting with an output shaft of the motor. The second support is located on the right side of the motor. The uniform sponge strip cutting-off device has a function of cutting the sponge strips uniformly, the lengths of the sponge strips cut off are the same, labor is saved, the working efficiency is improved, and the cutting-off device has the beneficial effects of being simpleand easy to use, convenient to operate, firm and the like.