Upper vehicle body structure of vehicle with sun roof

An upper vehicle body structure of a vehicle with a sun roof in which an edge of a roof panel at which the sun roof is installed is connected to a center pillar positioned at a center among a plurality of pillars formed to extend in a height direction of the vehicle and arranged in a longitudinal direction of the vehicle, the upper vehicle body structure comprising:

• a ring reinforcement member attached to the roof panel so as to form a closed section with the roof panel;
• a gusset unit mounted under the center pillar and the ring reinforcement member;
• wherein the sun roof is connected to the roof panel,
• wherein the gusset unit is mounted under the ring reinforcement member and the center pillar so as to underlap a connection portion at which an edge of the roof panel is connected with the center pillar,
• wherein the gusset unit includes:
• an upper gusset mounted to the ring reinforcement member and the center pillar;
• and
• a lower gusset coupled to the upper gusset and to a sun roof track mechanism,
• wherein a foam pad is interposed between one tip end of the upper gusset and one tip end of the lower gusset,
• wherein the one tip end of the lower gusset is connected with the sun roof track mechanism, and
• wherein the one tip end of the upper gusset is connected with the ring reinforcement member.