Monitoring data processing method and monitoring data processing device of optical module, and optical module

The invention discloses a monitoring data processing method and a monitoring data processing device of an optical module, and the optical module, wherein the method comprises the following steps: acquiring operation monitoring data of the optical module; when the operation monitoring data are greater than maximum monitoring data stored already, writing the operation monitoring data in a nonvolatile memory, thereby substituting the maximum monitoring data. The monitoring data processing method and the monitoring data processing device of the optical module, and the optical module, provided by the invention, are convenient for determining failure reasons of the optical module. 本发明提供种光模块的监控数据处理方法、装置及光模块，其中，方法包括：获取所述光模块的运行监控数据；当所述运行监控数据大于已存储的最大监控数据时，将所述运行监控数据写入非易失性存储器中，以替代所述最大监控数据。本发明提供的光模块的监控数据处理方法、装置及光模块能够便于确定光模块的失效原因。