This research mainly aimed to identify agricultural extension workers' knowledge of the climate change phenomenon at Kafr El-Sheikh Governorate. A simple random sample of agricultural extension agents was chosen, with 76 respondents. Data were collected by using a questionnaire form through personal interviews, mobile phone, social media, and e-mail with the respondents. Some statistical tools were used, such as the percentage, mean, standard deviation, simple and multiple correlation coefficient, partial regression coefficient and step-wise. The most important results were: About 59% of the respondents had a high degree of total knowledge of the climate change phenomenon, about 68% of them were familiar with the concept of this phenomenon, about 64% of them had a high degree of knowledge of the causes of this phenomenon, about 76% of them had a degree high knowledge of the general manifestations of this phenomenon, approximately 65% of them had a high degree of knowledge of the manifestations of this phenomenon in agriculture, and only about 7% of them high knowledge degree the dangers of this phenomenon on agriculture. It was also found that two independent variables contribute to explaining the variation occurring in the total knowledge degree of the climate change phenomenon were the agricultural experience variable (12.2%) and extension training variable (5.5%). A vision was proposed for the future role of extension work to confront the effects of this phenomenon at this governorate, including five axes: the organizational axis, extensionstes axis, extension workers axis, extension communication methods, and technical technologies axis.