To provide a mount structure for electric components and a flexible printed circuit board with excellent assembling and disassembling workability and sure connection, even when the electric components are strongly fixed and supported by support components, and each of the electric components in use has lead wires projected nearly in parallel with a side of the flexible printed circuit board.

Lands 2c wherein a conductor pattern is exposed are located on a side B of the flexible printed circuit board 2, and through-holes 2b are placed in the vicinity of the land 2c. Lead wires 1b projected from a slide switch 1 located on a side A opposite to the side B pass through the through-holes 2b obliquely at an angle from a perpendicular line of the flexible printed circuit board 2, and are soldered to the lands 2c.