A conduction structure includes a cooling plate and conductive members. A circuit board and a lamp panel are fixed at two sides of the heat cooling plate. The circuit board forms conductive areas. The cooling plate forms conductive areas and first holes with conductive inner faces. The lamp plate defines second holes. The lamp plate forms conductive areas around the second holes on the side away from the heat cooling plate. The conductive areas of the cooling plate contact with the corresponding conductive areas of the circuit board. Each conductive member includes a head and a rod. The rod engages in a corresponding first hole and a corresponding second hole in a transitional fit manner. The head electrically contacts the conductive area of the lamp plate. An LED illumination device using the same conduction structure is also provided.