To provide a vehicular bulb capable of preventing a filament from being deformed or disconnected by improving vibration durability regardless of materials of a glass bulb tube.

In a halogen lamp (vehicular bulb) 1 formed by housing a plurality of feeders 3, 4 and 5 passing through one end sealing part 2b of a glass bulb tube 2 and a low beam filament 6 and a high beam filament 7 connected to the feeders 3-5 in a sealed space S inside of the glass bulb tube 2 having a chip-off part 2a formed at the other end as a hollow sealing part one end of which is squeezed, the feeder 3 is extended, and the tip part thereof is inserted into the chip-off part 2a of the glass bulb tube 2 to form a minute space δ between the tip part and the inner periphery of the chip-off part 2a.