To provide a device and a method for filling liquid resin into a syringe in which scattering of liquid resin can be prevented when pressing out liquid resin remaining in a filling nozzle in order to prevent drip from the filling nozzle, and a problem of a degradation in the degree of vacuum in a vacuum atmospheric chamber hardly occurs.

In the filling device for filling liquid-form resin into a syringe and a filling method using the filling device, a filling nozzle 4 comprises a cylindrical nozzle body 21, a branched pipe 22 with a transfer hose 18 connected to a tip thereof, and a vertically movable plunger 23. When the plunger 23 is elevated, the nozzle body 21 communicates with the branched pipe 22. When the plunger 23 is lowered, an outlet 26 of the branched pipe 22 is closed on the side surface of the plunger 23.