Zhao Jiahua was born in 1910 in Jixian County, Henan. In his early years, he graduated from the Northeast Martial Arts School, and was later admitted to the fourteenth period of the Kuomintang Army University. In Chiang Kai-shek's troops, Wei Lihuang's chief of staff, Guo Jiyao, Hu Zongnan's chief of staff, Sheng Wen, and Du Yuming's chief of staff, Zhao Jiajun, were known as the "three chiefs of staff" of the Republic of China. Zhao Jiahua's family was the Wang clan of Henan, and his great-grandfather had assisted Shi Dakai, the wing king of the Taiping Heavenly Kingdom. Zhao Jiajun received a traditional Chinese education in his childhood, and like children of the same age, Zhao Jiajun also envisioned military life when he was a child. When Wu Peifu recruited Boy Scouts in Luoyang, Zhao Jiajun secretly climbed over the city wall and fled from his hometown to sign up.
At the end of the Second Zhifeng War, Zhao Jiajun and other boy scouts were captured in Fengtian and continued their training in the Northeast Officer Corps, and then entered the Ninth Infantry Section of the Northeast Lecture Hall, graduating with the fourth place in the school. Jin Haifeng, an instructor at the Northeast Lecture Hall, recommended Zhao Jiajun to chuxi chunjun in beiping, and Chu xichun recruited zhao jiajun, who had outstanding talents, as his son-in-law. At the end of the 19th century, in order to invade northeast China, Zhang Xueliang had a "Middle East Road Incident" with the Soviet army in order to recover China's sovereignty over the Middle East Railway. Zhang Xueliang appointed Liang Zhongjia, commander of the 15th Brigade of the Army, as the commander of the Western Route of the Middle East Railway. Liang Zhongjia, who had long heard of Zhao Jiajun's great name, sent Zhang Xueliang to the 19-year-old Zhao Jiajun as a front-line lieutenant combat staff officer.
As soon as Zhao Jiajun arrived at the barracks, he immediately rushed to make battle maps and battle plans, and personally led a cavalry death squad to attack the Soviet army at night, blowing up the enemy's arsenal. However, the Soviets sent a considerable force to surround Manchuria, cut off the Chinese army's support, and sent more than 70,000 people to storm Zaranor. The Chinese suffered heavy casualties, and many generals were killed on the front line. In December, China and the Soviet Union signed the "Burleigh Conference Protocol", and China's territory lost the "chicken crown". Although the Chinese side lost in the war, Zhao Jiajun's bravery and good fighting won high praise, saying that he was brave and intelligent, and he was actually a military wizard.
After zhao jiajun graduated from the fourteenth term of the army university, he was in urgent need of talents in the front of the War of Resistance Against Japanese Aggression, and he immediately served as the chief of staff of the Eleventh Army. After the fall of Wuhan, the Yunnan-Vietnam Railway and the Hump Route became the main channels for Chinese foreign aid. In order to cut off this land supply line, the Japanese invading army captured the military stronghold of Kunlun Pass. Chiang Kai-shek ordered a counter-offensive, Du Yuming's 5th Army captured the main position of Kunlun Pass, and Zhao Jiajun and Zheng Zuomin led the 9th Division to immediately take over the frontal defensive positions of the 5th Army, and then launched an attack on the Japanese army to fully recover the positions in Kunlun Pass. Then the Japanese army began to counterattack, and after the bloody battle, Kunlun passed and lost, which was a pity, but although this battle was defeated. Although Chiang Kai-shek was very angry, he held a meeting at Giethoorn Mountain and announced that a large number of senior generals had been punished, but he praised Zhao Jiajun greatly, saying that he was the best of the rising stars of the Nationalist army.
Chiang Kai-shek believed that staff officers should not just strategize, but should personally command operations on the ground. There are not many people who can enter Chiang Kai-shek's legal eyes at the same time, only Zhao Jiajun and Huang Baitao, chief of staff of the three theaters, can both plan and fight, coincidentally, both of them are soldiers, and finally they also responded to the sentence: The general will inevitably die before the battle. In 1943, the headquarters of the Expeditionary Force to Burma was formed, and at the invitation of Chen Cheng, Zhao Jiajun concurrently served as the leader of the cadre training regiment of the "Sino-US Senior Staff Research and Training Class", training more than 400 senior commanders at or above the division level. Soon after, Zhao Jiajun also concurrently served as deputy chief of staff of the China-India-Burma Theater, and Zhao Jiajun greatly revised the military training textbooks in light of the national conditions and formulated military teaching materials that conformed to China's national conditions. It strongly supported the front line of the War of Resistance Against Japanese Aggression, and Zhao Jiajun's reputation was greatly enhanced.
In January 1944, the 5th Army formed the 1st Paratrooper Regiment, which was trained by chief of staff Zhao Jiajun, which was the first airborne unit of the Chinese army, with 3 battalions and a total of more than 1,000 people. Therefore, it is not an exaggeration to call Zhao Jiajun the "father of the paratroopers of the Republic of China". For the sake of secrecy, the 1st Paratrooper Regiment was code-named "Hongxiang" to the outside world. After the victory of the War of Resistance Against Japanese Aggression, the civil war broke out, and Zhao Jiajun was again dispatched to the northeast. The Kuomintang army was losing ground one after another, there was a big gap in strength and heavy firearms, the situation in the northeast was useless to anyone, Chiang Kai-shek did not trust the senior generals very much, he exercised restraint everywhere, and it was difficult for the generals to play. For example, Wei Lihuang's side has always been secretly monitored by agents sent by Chiang Kai-shek, and sometimes Chiang Kai-shek felt that the secret agents were slow to report, so he directly called the chief of staff, Zhao Jiajun, and asked what the commander-in-chief was doing. ”
In 1955, Zhao Jiajun was appointed deputy commander and chief of staff of the "First Army", and later deputy commander of the "Kinmen County Defense Command". In 1958, in the Battle of Kinmen, in addition to the commander Hu Lian, the deputy commanders Zhao Jiajun, Ji Xingwen and others were killed by shells, and the Kuomintang posthumously awarded Zhao Jiajun a second-class general in the army.