NOVELTY - A combined matrix of vertical current artificial wetland comprises zeolite layer, anthracite layer, and bio-ceramic grain layer. A seepage-proof layer is filled with zeolite matrix having grain diameter of 2-5 mm. The zeolite layer is filled with anthracite matrix having grain diameter of 2-5 mm. The anthracite layer is filled with bio-ceramic grain matrix having grain diameter of 2-5 mm. The bio-ceramic grain layer is planted with a plant. The combined matrix has total filling height of 60-120 cm. Volume ratio of three layers is 1:1:1.    USE - Combined matrix of vertical current artificial wetland used for treating sewage.    ADVANTAGE - The combined matrix has wide matrix source and low cost. The bio-ceramic, anthracite and the zeolite layers are capable of removing pollutant through filtering, absorption and sedimentation. The upper layer bio-ceramic grain is suitable for growth of plant and microorganism and of indirectly forcibly removing pollutant. The treated sewage conforms to GB18918-2002 first level or second level drainage standard; and can be recycled or drained into different water bodies.    DETAILED DESCRIPTION - A combined matrix of vertical current artificial wetland comprises zeolite layer, anthracite layer, and bio-ceramic grain layer. A seepage-proof layer is filled with zeolite matrix having grain diameter of 2-5 mm. The zeolite layer is filled with anthracite matrix having grain diameter of 2-5 mm. The anthracite layer is filled with bio-ceramic grain matrix having grain diameter of 2-5 mm. The bio-ceramic grain layer is planted with a plant. The combined matrix has total filling height of 60-120 cm. Volume ratio of three layers is 1:1:1. A water inlet pipe is connected with a through hole water distribution pipe. A water outlet collecting pipe is connected with water outlet pipe. The through hole water distribution pipe is placed on the surface of the bio-ceramic grain layer. The water outlet collecting pipe is placed at bottom of the zeolite layer.