To provide a functional liquid supply system capable of supplying a functional liquid to a plurality of functional liquid droplet discharge heads from a single pressure adjusting valve under the same pressure condition, and a droplet discharge apparatus provided with the same.

The functional liquid supply system includes: the single pressure adjusting valve 27 for opening/closing a valve body provided in a communicating flow path communicating a primary chamber and a secondary chamber inside a valve housing at an atmospheric pressure standard by a pressure receiving film body configuring one surface of the secondary chamber, adjusting the pressure of the functional liquid supplied from a functional liquid supply device 41 and supplying it; the plurality of functional liquid droplet discharge heads 14 which are communicated with the secondary chamber, receive the supply of the functional liquid from the pressure adjusting valve 27 and are disposed within the same horizontal plane; and a flow path unit 55 for connecting the secondary chamber and the plurality of functional liquid droplet discharge heads 14. The flow path unit 55 is configured such that a plurality of flow paths from the secondary chamber to the respective functional liquid droplet discharge heads 14 have the same pressure loss to the same flow rate.

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