The objectives of this research were: 1) to study personal factor that affect work efficiency of the workers in Chengdu city. 2) to study motivation factors that affect work efficiency of the workers in Chengdu city. This study was quantitative research. The population were people who live in Chengdu city. The exact number is unknown. The samples size was the workers in Chengdu group was 376 persons. Using a purposive sampling method. The tool used for collecting data is a questionnaire. The statistics used in the analysis were frequency, percentage, mean, standard deviation and multiple regression analysis. Major findings: 1) the workers in Chengdu with different genders, ages, average monthly income and length of employment. Effective in working They are significantly different at the 0.05 level and 2) The motivation factors of responsibility, nature of work performed and progress affect the effectiveness of workers in Chengdu with statistical significance at the 0.05 level.