The present technology relates to an imaging apparatus and a manufacturing method of the imaging apparatus. A glass plate 13 is mounted at a position corresponding to an opening portion 15 a on a substrate 15. An imaging device 16 is mounted at a position with an optically appropriate distance in terms of design based on a surface of the glass plate 13 on a face of the substrate 15 opposite to a face on which the glass plate 13 is mounted, at a position corresponding to the opening portion 15 a. A lens barrel portion 11 is placed so that the optical system block 12 is set at a position with an optically appropriate distance on the glass plate 13, and fixed with an adhesive 14.