A roof structure includes: a roof panel 11; a sunroof unit 13; a roof lining 10; and a roof lamp 17. The roof panel 11 has a sunroof opening 12. The room lamp 17 has a cover part which is mounted on a vehicle body while penetrating an insertion hole 18 of the roof lining 10 and designed to cover an edge part of the insertion hole 18 from inside the vehicle compartment. The sunroof unit 13 has a sunroof frame 14 which is mounted so as to extend substantially along an edge part of the sunroof opening 12. The sunroof frame 14 is provided integrally with a displacement restriction part which is designed to restrict upward displacement of the edge part of the insertion opening 18 of the roof lining 10.