A compaction management system, comprising: a work machine including; a machine body, a work device attached to the machine body rotatably and vertically, a rotary device capable of hydraulically rotating the work device, a machine body attitude detection device that detects an attitude of the machine body, a work device attitude detection device that detects an attitude of the work device, a position detection device that detects a position of the machine body, an orientation detection device that detects an orientation of the machine body, characterized by a pressure detection device that detects a pressure of the rotary device, and a dimension storage device that stores dimensions of the work device; a position calculation unit that, when the work device is pressed against a compaction target ground, calculates a rolling compaction position which is a pressing position of the work device against the compaction target ground using the attitude of the machine body detected by the machine body attitude detection device, the attitude of the work device detected by the work device attitude detection device, the position of the machine body detected by the position detection device, and the orientation of the machine body detected by the orientation detection device; a rolling compaction force calculation unit that, when the work device is pressed against the compaction target ground, calculates a rolling compaction force applied to the compaction target ground using the attitude of the machine body detected by the machine body attitude detection device, the attitude of the work device detected by the work device attitude detection device, the pressure detected by the pressure detection device, and the dimensions of the work device stored in the dimension storage device; a rolling compaction record creation unit that creates a rolling compaction record in which the rolling compaction position is associated with the rolling compaction force calculated by the rolling compaction force calculation unit; a storage device; and a storage control unit that causes the storage device to store the rolling compaction record created by the rolling compaction record creation unit. a work machine including; a machine body, a work device attached to the machine body rotatably and vertically, a rotary device capable of hydraulically rotating the work device, a machine body attitude detection device that detects an attitude of the machine body, a work device attitude detection device that detects an attitude of the work device, a position detection device that detects a position of the machine body, an orientation detection device that detects an orientation of the machine body, characterized by a pressure detection device that detects a pressure of the rotary device, and a dimension storage device that stores dimensions of the work device; a position calculation unit that, when the work device is pressed against a compaction target ground, calculates a rolling compaction position which is a pressing position of the work device against the compaction target ground using the attitude of the machine body detected by the machine body attitude detection device, the attitude of the work device detected by the work device attitude detection device, the position of the machine body detected by the position detection device, and the orientation of the machine body detected by the orientation detection device; a rolling compaction force calculation unit that, when the work device is pressed against the compaction target ground, calculates a rolling compaction force applied to the compaction target ground using the attitude of the machine body detected by the machine body attitude detection device, the attitude of the work device detected by the work device attitude detection device, the pressure detected by the pressure detection device, and the dimensions of the work device stored in the dimension storage device; a rolling compaction record creation unit that creates a rolling compaction record in which the rolling compaction position is associated with the rolling compaction force calculated by the rolling compaction force calculation unit; a storage device; and a storage control unit that causes the storage device to store the rolling compaction record created by the rolling compaction record creation unit.