With the extensive deployment of optical communication equipment in different regions and environments

there are many failures of optical module due to sulfurization corrosion caused by the unqualified environment of the equipment room. Therefore

the demand for the work life prediction of optical module in sulfur-containing environment is rapidly increasing. In this paper

we propose a method to establish a life prediction model for the resistors and beads inside the optical module that are corroded in the accelerated corrosion condition. In this method

Weibull distribution is used as the reference failure function

and the same environmental stress or different environmental stress is used as the covariate. Then the parameters of prediction model are analyzed by using the failure rate data of resistors and beads in the accelerated test. It shows that the accelerated test results are consistent with the failure data in the field. Therefore

the model can meet the needs of life prediction of optical modules at the communication office.