To provide a fluid control valve unit for use in fluid devices that makes the use of the characteristics of a rubber material which requires a secondary vulcanization, and enables a simple and rigid attachment of gaskets.

A fluid control valve unit 8 is attached by insertion to a fluid device 1 provided with a plurality of fluid pipe conduits 7. The fluid control unit comprises a unit base body 9 integrally having a valve cylinder body 10 corresponding to the plurality of pipe conduits 7, a valve body 11 supported openably and closeably within each valve cylinder body 10, and a gasket 12 sandwiched at a joint between the valve cylinder body 10 and the fluid pipe conduits 7. The gasket 12 includes a joining base portion 12a attached to the periphery of a joining end 10a in the valve cylinder body 10, and a seal portion 12b elastically joined to the joining end 7a at the pipe conduits 7. The gasket 12 is made of rubber material that requires secondary vulcanization, and attached integrally in close contact with the periphery of the joining end 10a by subjecting a primary molded article in a primary vulcanization state of the rubber material, to a secondary vulcanization with the joining base portion 12a being attached to the outer periphery of the joining end 10a of the valve cylinder body via adhesives.

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