Objective:The estimated latent variable scores were obtained and convenient for other statistical analysis when Structural Equation Model was not suitable in some conditions.Methods:The latent variable scores theory of confirmatory factor analysis was discussed and latent variable scores were estimated with LISREL program.Results:Occupational stress survey data were utilized to exemplify the latent variable scores estimated method and the analysis results OSI-R coincided with professional interpretation.Conclusion:Latent variable scores were more valid than sum scores for it counteracted the influence of measurement error.