The utility model relates to a paying-off device which comprises a shell body, a winding roller arranged in the shell body through a rotary shaft, a hand shank arranged at one end of the rotary shaft and located on the outer side of the shell body, a handle rotatably arranged at the outer end of the hand shank, a sponge block I arranged in the shell body, an electric push rod arranged on the top of the shell body and a single chip computer arranged in the shell body. The end portion of a piston rod of the electric push rod is provided with a fixing plate located in the shell body, a sponge block II is arranged at the bottom of the fixing plate and located right above the sponge block I, a cotton rope winds the winding roller, the end of the cotton rope penetrates through a threading hole, and the cotton rope is located between the sponge block II and the sponge block I. The single chip computer controls the electric push rod to be powered up at intervals along with extending of the cotton rope during paying-off, and the electric push rod is powered up and pushes the fixing plate to enable the sponge block II to extrude the sponge block I. Therefore, ink absorbed by the sponge block II and the sponge block I is gradually squeezed out, and the ink absorbing effect of the cotton rope keeps good all the time.