To provide, according to the present invention, a vehicular charging box structure capable of improving an assembling workability for assembling electrical components on respective surface that intersect with each other.SOLUTION: A charging box structure 2 includes: a charge lid box 10 that includes an outer plane part 12 which divides the interior of a vehicle 1 from the exterior thereof, and an inner circumference surface 11 which intersects with the outer plane part 12 so as to form an inferior angle therebetween; an indicator 22 assembled in an indicator hole part 12a provided in the outer plane part 12; a lighting component 21 which is assembled in a lighting component hole 11a provided in the inner circumference surface 11; a holding member 30 which integrally holds the indicator 22 and the lighting component 21, and which is fastened to the outer plane part 12; and a fastening member 42 which fastens the holding member 30 to the outer plane part 12 from the inferior-angle side formed between the outer plane part 12 and the inner circumference surface 11. The holding member 30 is configured to be deformable toward the inner circumference surface 11 together with the fastening by the fastening member 42.SELECTED DRAWING: Figure 2