A method of manufacturing a wire with terminal includes: a) crimping a core wire crimping portion of a terminal onto an exposed core wire extending from an insulating sheathing member at an end portion of a wire; b) crimping a sheath crimping portion of the terminal onto the insulating sheathing member; and c) designating at least one of a first trough-shaped combination portion, which links a terminal connection portion of the terminal and the core wire crimping portion, and a second trough-shaped combination portion, which links the core wire crimping portion and the sheath crimping portion, as a target combination portion and deforming the upright tabs of the target combination portion into an arc shape bulging outward.