The invention relates to a multifunctional epoxy coating prestressed tendon production line. The production line comprises a pay-off machine, a traction machine I, a cleaning tank set, an intermediate frequency heating furnace, a wire separating disc, an electrostatic spraying tank, a device A (namely a heat preservation tank or a semi-finished product cooling tank), a central wire tensioning mechanism, a cooling tank, a traction machine II, a rewinding-winding machine, a heat preservation tank, a semi-finished product cooling tank, a driving motor and a long transmission shaft, wherein the long transmission shaft is connected with the driving motor and is also connected with the wire separating disc and the central wire tensioning mechanism, respectively. The multifunctional epoxy coating prestressed tendon production line can be used for producing three prestressed tendon products including an epoxy coating filling type steel strand, a monofilament coating type epoxy steel strand and an epoxy coating steel wire, and the surfaces of the steel strand and the prestressed steel wire can be thoroughly cleaned; meanwhile, by virtue of the central wire tensioning mechanism, the problem that a production line cannot work for a long time because a central wire is lengthened is solved.