The invention discloses a cable compaction device. A cable drum is mounted on a rotation shaft, an outer side of the cable drum is provided with a sleeve, upper and lower sides of the sleeve are respectively provided with an upper driver and a lower driver, a lower end of the upper driver is equipped with an upper compaction block, an upper end of the lower driver is equipped with a lower compaction block, left and right sides of the sleeve are respectively provided with a left driver and a right driver, one side of the left driver is equipped with a left compaction block, and one side of the right driver is equipped with a right compaction block. The cable compaction device is advantaged in that the upper compaction block, the lower compaction block, the left compaction block and the right compaction block are arranged through arranging the upper driver, the lower driver, the left driver and the right driver, the cable drum can be compacted in four directions, labor saving and time saving are realized, and the compaction effect is good.