The Hongnong Yang family of the Tang Dynasty was a very large family, and its influence was very large throughout the Tang Dynasty. However, there was no conclusive evidence as to whether they had the tendency to divide the military regions. During the Tang Dynasty, the phenomenon of the military governors splitting up was not very common. Most of the military governors adopted a relatively peaceful foreign policy and maintained a relatively stable relationship with the court. During the Tang Dynasty, although the Hongnong Yang family was a huge family, they did not show any obvious tendency to divide the country. It should be noted that historical events and characters are complex and cannot be simply evaluated in a positive or negative way. As for whether the Tang Hongnong Yang family was a military governor or not, it was necessary to analyze its historical background, family members, actual performance and other factors.