The invention claims component internally installed wiring plate with electrical component/unit (16) installed on insulation board (11) and the manufacturing method. Such desigh can reduce the manufacturing burden and increase the reliability. The component internally installed wiring plate is consisted of wiring pattern, electrical component/unit and insulation barrier (11A). The electrical component/unit is electrically and mechanically installed on the wiring pattern. Insulation barrier (11A), fixed with electrical component/unit, laps on one side of the wiring pattern that is connected with electrical component/unit, and the area (11o) without electrical component/unit installed on is fixed with reinforcement material (11b). The manufacturing method concludes steps as follow: first, electrically and mechanically install electrical component/unit on first metal foil or first metal wiring pattern of the first insulation barrier; second, install second insulation barrier on the firstmetal foil or first metal wiring pattern, there is reinforcement material on the second insulation barrier and openings for electrical component/unit at corresponding positions; third, install secondmetal foil (13A) or third insulation barrier on the second insulation barrier, and carry on laminating all-in-one process.