PURPOSE: To provide a 5-port solenoid valve and a bending finishing machine using it, in which bending working with high accuracy can be carried out as well as to reduce a cost by simplifying an oil pressure circuit.

CONSTITUTION: A valve main body 29 is equipped with four inlet/outlet passages P, T, A, B for pressure fluid, and the connecting conditions of the inlet/outlet passages can be converted by reciprocating a spool 31 in the inside of the valve main body 29 so as to change over the channel of the pressure fluid, therefore, 5-way connection can be realized. This spool 31 is reciprocated by a linear direct current motor 33 arranged at one end thereof, and the other end side spool position detector 41 detects the position of the spool 31 against the valve main body 29. In a bending machining machine PB using this 5-port solenoid valve 27, a fluid pressure cylinder vertically moves a ram so as to execute the bending machining of a plate member. At this time, a control part controls the linear direct current motor 33 on the basis of a signal transmitted from a height position detector arranged to the ram so that the action of the fluid pressure cylinder is selected and driven.