The aim of this study was to evaluate the effects of treatment on, communication skills of NAJA employees. The sample were consisted of 40 NAJA personnel of the city of Abadan (experimental group) and 40 city NAJA personnel behbehan (control group), that were selected such as multi-stage random sampling in two experimental and control groups. Measurement Tool was Queen dom communication skills questionnaire (2004).to implemented in the first, Of both groups, was taken pre-test. then the experimental group were trained in 12 session for 32 hours .then was taken after 3 months from both groups post test .Analysis of data was done using multivariate analysis of covariance (MANCOVA) and a variable analysis of covariance (ANCOVA), the significant level 0.05. The results showed that excellence conduct training courses on communication skills had a significant effect.