A method for manufacturing a terminal with an electric wire includes: forming a conductor exposed portion by removing a resin coating of an electric wire; forming a wire-terminal connection portion by connecting a terminal fitting to a position of the conductor exposed portion; and supplying a sealing material from a nozzle to the wire-terminal connection portion. During supply of the sealing material, the nozzle is moved in X-, Y- and Z-directions or a relative position between the wire-terminal connection portion and the nozzle is changed in the X-, Y- and Z-directions.