The invention provides a double-pointed-head pile forming machine. A first front half convex V-shaped tool post, a first rear half convex V-shaped tool post, a second front half convex V-shaped tool post, a second rear half convex V-shaped tool post, a front half concave V-shaped tool post and a rear half concave V-shaped tool post stir soil bodies at the lower ends of themselves with cement slurry in rotating; the first front half convex V-shaped tool post and the first rear half convex V-shaped tool post stir the left end to form a convex V-shaped head in rotating; the second front half convex V-shaped tool post and the second rear half convex V-shaped tool post stir the right end to form a convex V-shaped head in rotating; and in the process that a drill pipe is pressed downwards, a cemented soil stirring pile with the left end and the right end each provided with the corresponding convex V-shaped head is formed.