System and method for oxidizing and thermally propelling by active metal wire

The invention discloses a system and a method for oxidizing and thermally propelling by an active metal wire. The system for oxidizing and thermally propelling by the active metal wire comprises an air cylinder, a piston, an arc generating device, a first active metal wire supplier, and a power supplier; the air cylinder is provided with a cylinder body, an air inlet valve and an air exhaust valve, wherein a combustor is defined by the cylinder body; the piston is arranged in the cylinder body; the arc generating device is provided with a first electrode and a second electrode penetrates through the cylinder body, wherein a small gap for generating an electric arc existes between the first electrode and the second electrode; the first active metal wire supplier supplies a first active metal wire and feeds the active metal wire in the combustor as the first electrode; the power supplier is electrically connected with the first electrode and the second electrode to generate the electric arc, so that the first active metal is vaporized.