The objectives of this research were to study the performance levels and the factors that affect to operated of the officers and employee's job performance of Public Warehouse Organization in headquarters, Thonburi and Ratburana warehouse. The sample used in this study include officers and employee’s Public Warehouse Organization working in headquarters, Thonburi and Ratburana warehouse on 243 samples and using a questionnaire to collect data on this. To test the reliability with a coefficient alpha (Alpha Coefficient) by Cronbach of methods (Cronbach) on 30 samples by the integrated approach = 0.967. The statistics used in this analysis are as follows frequency, percentage, average and standard deviation. Analysis of differences by using different test values (t-test) in the case of the difference of the two groups to test the difference among the three groups on the way to finding ANOVA (One Way ANOVA), and to test for possible differences in pairs (Multiple comparison) with the Least Significant Difference (LSD) and to evaluate the relationship between variables. By means of a Pearson correlation coefficient (Pearson's Correlation), which analyzes the data obtained, the study has the following conclusions.