The study was carried out on a sample of 25 extension agents in Wady Zabied area attending a post-harvest training program. Percentages, Frequencies, and T test were used for the analysis and presentation of results , which can be summarized as follows : 1 – The trainees post-harvest process knowledge was improved significantly following the training program. This was shown by increasing correct answers in the post-harvest test by 44% - 66.7% (21.6 % on an average). 2 – There is a statistically significant relationship at (prob. 0.01 ) between the trainees knowledge at pre -and post test in the filed of post-harvest, fruit treatment, translocation, grading, and cold storage