PCB of optical module and optical module

The utility model relates to the technical field of optical communication, and provides a PCB (printed circuit board) of an optical module, one surface of a board body is bonded with an optical passive device, the other surface of the board body is reserved with a first blank position corresponding to the optical passive device, and the first blank position is provided with a first reinforcing plate. The utility model further provides an optical module which comprises a shell and the PCB of the optical module, and the PCB is installed in the shell. According to the utility model, when the PCB is deformed under the action of external force in the manufacturing or assembling process, the reinforcing plate is added to reinforce the local strength of the PCB, so that the deformation of the PCB is greatly reduced, and the risk of pseudo soldering or loosening of an optical active element (a BGA packaged laser driving chip) or an optical passive element (an AWG chip) is greatly reduced. 本实用新型涉及光通信技术领域，提供了一种光模块的PCB板