The invention discloses a rapid paying-off device applied to a distribution network of a grain-producing area. The rapid paying-off device comprises a machine frame, a first support, a second support,a third support, a straight line channel, a cable tray, a tensioning wheel, a guide wire pressing wheel and a lifting platform, wherein the first support, the second support, the third support and the straight line channel are sequentially arranged on the machine frame, the cable tray is rotationally mounted on the first support, the tensioning wheel is rotationally mounted on the second support,the guide wire pressing wheel is rotationally connected to the third support, and the lifting platform is arranged below the machine frame. The rapid paying-off device has the characteristics of being simple in structure, convenient to operate and reliable; universal wheels are arranged, so that the device can be moved conveniently and flexibly, the cable paying-off device can be widely applied to power cable laying construction, cable paying-off construction is greatly facilitated, the construction efficiency is improved, and the labor intensity of constructors is reduced; a side portion universal wheel is arranged, can stretch according to the bump of a rugged road and corresponds to the height of the guide wire pressing wheel, so that a high-altitude uneven grain field can be conveniently crossed; and the ground clearance between the platform bottom and the ground can be adjusted, and a ground clearance can be heightened for crops with higher plants, so that damage to grain plantsis reduced.