The present invention provides an optical module structure. The optical module structure comprises a first carrying plate and a second carrying plate; the upper surface of the first carrying plate is provide with an electric chip; the second carrying plate is disposed above the first carrying plate; a side wall of the second carrying plate, which is adjacent to the electric chip, is provided with a photoelectric conversion element; and the photoelectric conversion element is connected with the electric chip through a connection structure. According to the optical module structure of the invention, the photoelectric conversion element is disposed above the electric chip, and therefore, by means of such a flip-chip bonding mode, connection between the photoelectric conversion element and the electric chip can be shortened, loss can be reduced, and a transmission rate can be increased.