The utility model provides a tension device tied in a bundle. Tension device tied in a bundle is including being used for installing tension device tied in a bundle in external equipment's mounting panel, go up the last tension sheave that the shaft runs through the yarn pile warp of the confession winding work piece of rao the wheel rotation of axes of mounting panel top setting perpendicularly, the shaft runs through the lower tension sheave of the yarn pile warp of the confession winding work piece of rao the wheel rotation of axes of mounting panel below setting perpendicularly down, can locate the left confession of mounting panel twines the left guide pulley that the yarn of work piece was drawn forth with sliding from top to bottom, can locate the right guide pulley of the yarn introduction of the confession winding work piece on mounting panel right side with sliding from top to bottom, correspond locate tension sheave run through the mounting panel the rear end to the damped magnetic powder brake of last tension sheave formation, correspond locate down tension sheave run through the mounting panel the rear end to two damped magnetic powder brake of tension sheave formation down. The utility model provides a tension device tied in a bundle tension control is accurate, application scope is wide.