In the thirty-third year of Qianlong (1768), in April, Myanmar went to war with Siam, and did not want to make trouble with China again. So he released the Qing prisoners and asked them to send a letter to the commander-in-chief of the Qing army on his behalf, asking them to pay tribute and let the soldiers rest in peace. On this basis, Ali Zhou, the deputy general, heard that Emperor Qianlong forbade him to attack Myanmar again. He ordered more than 40,000 officers and men from Northeast China, Fujian, Sichuan, Guizhou and other provinces to be sent to the Yunnan military camp for standby; Also sent cupolas, nine cannons, rockets, cupping and other military weapons. , as well as drugs for relieving summer heat and treating dysentery, were transported to the front of the army for standby, and two million and two thousand silver were allocated to prepare 50,000 or 60,000 horses for quartermaster, which will be ready by the end of the year. In the thirty-fourth year of Qianlong (1769), in February, Fu Heng was officially awarded the seal of the general manager and gave a banquet to see the general off. Fu Heng left Beijing on February 2 1 and went to Yunnan on March 24. April, with Ali, Zhou, A Gui, etc. Agree on an invasion strategy. Fu Heng pushed his way through the crowd and decided to send troops in July in advance. He also decided to March in three ways: all the way, under the command of Fu Heng, he was led out of Hexi from Jiajiu River (also known as Binglang River), and after plowing fiercely, he took sparse trees and took Awa as his right teacher. One route was led by Agui of Jiangdong, and after fierce secret, he went south and became a partial teacher. Along the way, Ali Jia led the Fujian navy down the river, thinking that he would coordinate. On July 20th of that year, Fu Heng set out from Tengyue, led an army to the west of Jiujiang, and raised elephants, cattle and grain under his command. During the autumn harvest in Myanmar, it is better to fight, so Fu Heng traveled two thousand miles without bloodshed. However, the rain was slippery on the way, the pack animals fell to their deaths, and it was not easy for the soldiers to eat and live. Besides, the weather is hot, and many people are ill. Fu Heng changed the original plan to attack Ava by thinning trees and retreated. In October, then led the division to meet A Gui and others. The army will leave the Irrawaddy River, and the Burmese army has arranged ships to seize the estuary and divide into two forces to meet the enemy. So, Ha Guoxing took the navy, Ali Zhou and A Gui took the army, and advanced to the two sides of the strait respectively. The enemy on the east coast arrived first, and A Gui sent arrows in unison, and cavalry troops rushed in from left and right, and the enemy soldiers were defeated. Ha Guoxing and others led the boat division to attack the Burmese navy division by the wind, and the enemy ships collided, killing and injuring thousands of people, and the river turned red. Ali Zhou's army on the west bank even broke through the enemy fence, and the rest of the enemy soldiers fled. The Qing army won three wars. At this time, Fu Heng and Ali were infected with the epidemic, and the epidemic collapsed. People discussed not attacking Wadang and taking the old official chariot nearby. Unexpectedly, Laoguantun is next to the river on the slope, and the stockade building is very strong and tight. The Qing army could not attack in ten days, and artillery bombardment and gunpowder bombing could not break its grid; Hooked with old vines and cut off by enemy soldiers. Moreover, its gate has a water gate that can pass through the ship, so the grain transport machinery is endless. After A Gui allocated 50 warships to intercept its transportation route, the enemy began to fear, and one side sent messengers to make peace. At that time, due to acclimatization, there were many wounded and sick people in the Qing army, plus casualties in the battle, there were only more than 13 thousand officers and men with more than 40 thousand, and the number of employees decreased by more than half. Ali Kun died in November, and Fu Heng couldn't afford to get sick. In this case, when the enemy demands peace, all the generals will fight for a truce. With the permission of Emperor Qianlong, Fu Heng sent Ha Guoxing and others to the enemy village to make peace. After negotiations, it was agreed that Myanmar would pay tribute to the Qing Dynasty, return the prisoners and return the land occupied by the chieftain. In the Qing Dynasty, Mubang, Mamo, Meng Gong and Mengyang were returned to Myanmar. In the thirty-fourth year of Qianlong (1769), the peace treaty was established in December, and the Qing army immediately burned the ship and withdrew. After Fu Heng returned to Beijing, he died of grief and shame soon. This 4-year, cost13 million yuan war to levy Burma is over.