The invention discloses an anchor provided with a rotatable anchor head. The anchor comprises the anchor head and an anchor rod, wherein the anchor rod is mounted on a pivot point in the center of the anchor head and can rotate by 40 degrees leftwards and rightwards around the pivot point of the anchor head, a lifting ring is arranged at the top end of the anchor rod and movably connected with the top end of the anchor rod through a pin shaft, and the lifting ring is connected with an anchor chain. The anchor has the advantages that the anchor has a simple and reasonable structure and generates reliable and high-enough torque for the anchor head under the extreme use condition, and ground holding force for holding the seabed cannot be weakened when the anchor lies flatly.