The invention discloses a torpedo anchor with a separable anchor body. The torpedo anchor comprises tail fins and an anchor body separated from one another, wherein the plurality of tail fins are symmetrically welded on the outer side of a sleeve; the outer diameter of the anchor body is smaller than the inner diameter of the sleeve; an end is arranged at the upper end of the anchor body; the outer diameter of the end is larger than the outer diameter of the sleeve; the interior of the anchor body is hollow; the hollow is filled with a filler; a conical anchor head is arranged at the lower endof the anchor body; a mooring rod is arranged at the upper end of the anchor body; after the anchor body sleeves with the interior of the sleeve with tail fins, the anchor body and the sleeve penetrate into the seabed, and the anchor body is subsequently removed, and the sleeve with tail fins penetrating into the seabed forms an anchoring base. By utilizing the anchor body with high dead weight,the sleeve with tail fins can penetrate into the seabed having large depth, the sleeve with tail fins remained in the seabed forms the anchoring base so as to be used for a mooring net cage, the anchor body can be repeatedly utilized, and the construction cost is low.