PURPOSE: A halogen lamp socket is provided to exactly set a halogen lamp by improving a structure of a socket in which the halogen lamp is inserted and precisely adjusting an irradiating direction of light by the halogen lamp. CONSTITUTION: A halogen lamp is inserted into a base to form a plug terminal. A lamp(28) is inserted into a hole(30) of an upper support member(22). The upper support member(22) has a disc shape. A bellows portion(24) is formed at a lower end of the upper support member(22). Holes(34) are formed at the bellows portion(24) at regular intervals. A plurality of bellows(36) are formed between holes(34). A support piece(26) is formed at a peripheral surface of the upper support member(22) at surroundings of the bellows portion(24). The support member(26) is integrally formed on a flange portion(38).
