In order to master the construction quality risk of integrated bridge, a comprehensive evaluation method based on cloud model is proposed. Cloud model generator, merged cloud algorithm and multi-attribute assessment method are used to solve the problem of qualitative description and quantitative calculation in the process of quality risk assessment of ship integrated bridge construction. Taking a civil ship as an example, the quality risk assessment of ship integrated bridge construction is carried out. The results show that the assessment model can integrate subjective and objective information, and provide an effective assessment method for the construction quality risk of the integrated bridge.