Light path processing element, headlamp module vehicle lamp and vehicle

A light path processing element, comprising an element main body, the element main body having a cut-off portion used for forming a cut-off line, wherein

• the light path processing element is a reflecting element;
• the element main body is a double-sided reflecting plate comprising a low-beam reflecting surface and a high-beam reflecting surface;
• the cut-off portion is arranged or formed at one end of the low-beam reflecting surface, the cut-off portion is a groove that is formed in a surface of the low-beam reflecting surface and has a cut-offline shape, or is a protrusion that is formed in a surface of the low-beam reflecting surface and has a cut-off line shape;
• or,
• the light path processing element is a light shielding element, the element main body is a light shielding plate main body, the light shielding plate main body comprises a protrusion and a reflecting surface located on opposite surfaces of the light shielding plate main body, and the protrusion has the cut-off portion used for forming the cut-off line.