The invention relates to a felting needle for producing a thick non-woven material containing a reinforced layer. The structure and parameters of a needle tip, a needle waist and a needle handle of the conventional felting needle are kept, and the needle consists of three parts, namely a matrix with an elliptical cross section, a rib which is integrated with the matrix and has two isosceles triangle-shaped sections, and 2-3 hooks formed on each vertex edge of the rib. When the felting needle is used for needling, an included angle between the long diameter of the transverse section of the matrix of the needle and the warp yarn guide direction is required to be set to be 45 to 90 degrees, so that warp yarns or weft yarns of the reinforced layer can be opened on the side face of the long diameter of the elliptically cylindrical matrix of the needle, and the hooks are hardly contacted with the warp yarns or weft yarns of the reinforced layer; and therefore, the damage of the warp yarns or weft yarns of the reinforced layer is greatly lightened, and the reinforced layer in the final product has high strength retention rate. The felting needle is easy and convenient to process, is suitable for a single warp yarn layer and suitable for needling and reinforcing the thick non-woven material with a woven reinforced layer; and the product can be widely applied to the fields of high-temperature-resistant filter materials, geotextile, sofa synthetic leather base fabrics and the like.