To enable connection of a multilayered rigid printed circuit board to a flexible printed circuit board with many signal lines in narrow connection spaces.

Connecting flexible printed circuit boards 5, 6 are used to electrically connect a multilayer rigid printed circuit board 1 having at least two connectors 3, 4 disposed in parallel at one side to a flexible printed circuit board 2. The boards 5, 6 are connected to the board 1 through connectors and connected to the board 2 by compression bonding of multi-point connection terminals 12 with conductor patterns on compression bonding connections 10, 11. The board 2 has the same number of compression bonding connections 10, 11 as the number of the connecting boards 5, 6. Each of the flexible boards 2, 5, 6 is a both side printed circuit board.