A reliability design and analysis method for electronic products was proposed based on the digital prototype.Firstthe common stress damage models of electronic products are analyzed.Based on the theory of physicsoffailureand taking the design information and prospective working condition of the electronic products as the inputswe analyzed the stress properties of the products under the life profile through computer modeling and simulation.Then failure analysis was conducted based on the stress damage modelthus the failure information matrix was obtainedand a reliability design and analysis method was proposed based on digital prototype of the product.The analysis results to an aero electronic product example show that this method can find the vulnerable spots of the reliability designpresent prevention measures for improving the design and eliminating the potential faultsthus can improve the inherent reliability of the electronic product ultimately.