SPRING COIL PROSTHESIS FOOT HAVING ANKLE JOINT MOVEMENT COMPRISING OF A CYLINDRICAL BASE, ATTACHED TO A SCREW BASE ON A FOOT PLATE, A ROD BALL BEARING WHICH GIVES ANKLE JOINT MOVEMENT ATTACHED TO THE SCREW BASE ALONG WITH AN IRON SPRING AND A TOP COVER WHICH CONTROLS THE MOVEMENT OF ROD BALL BEARING. THE CYLINDRICAL BASE IS ATTACHED TO THE FOOT PLATE AT THE HEAL PART. THE CYLINDRICAL BASE IS PROVIDED WITH A PLURALITY OF SLIT ALONG THE CYLINDRICAL WALL WHICH HAS A MAXIMUM DEPTH UP TO HALF OF THE HEIGHT OF THE CYLINDRICAL BASE, THE SCREW BASE PLACED INSIDE THE CYLINDRICAL BASE IS ATTACHED TO THE FOOT PLATE USING SCREWS, THE ROD BALL BEARING CONSISTS OF TWO MAIN PARTS, A HEAD PART AND A TAIL PART. THE IRON SPRING SUPPORTS THE ROD BALL BEARING AND ACTS AS ENERGY STORING DEVICE TO STORE MECHANICAL ENERGY TO SUPPORT THE MOVEMENT.