A manufacturing method of an embedded wiring board is provided. The method includes the following steps. First, an insulation layer and a lower wiring layer are provided, wherein the insulation layer includes a polymeric material. Then, the plural catalyst grains are distributed in the polymeric material. A groove and an engraved pattern are formed on the upper surface. A blind via is formed on a bottom surface of the groove to expose the lower pad. An upper wiring layer is formed in the engraved pattern. Some catalyst grains are exposed and activated in the groove, the engraved pattern and the blind via. A first conductive pillar is formed in the groove. Finally, a second conductive pillar is formed in the blind via.