Printed circuit board

The utility model provides a printed circuit board, includes a plate body, a conductive pattern, a conductive metal piece and a metal level. Conductive pattern is located the plate body, and the conductive metal piece has a first end and second end, the first end and second end rigid coupling in the plate body of conductive metal piece, and an accommodation space has between conductive metal piece and plate body. The accommodation space is just inserted on attaching to conductive metal piece and conductive pattern to the metal level. So as to the conductive metal piece that provides enough thickness for the metal block provides enough low resistance, increases printed circuit board's impedance efficiency. The technical scheme of the utility model enough low resistance of metal block that conductive pattern formed together with conductive metal piece and metal level can be provided, printed circuit board's impedance efficiency is increased.