Because the main reason is that the strength of Fujian navy is much lower than that of French navy. Although there are many ships in Fujian Navy, they are all made of wood, which not only drains slowly, but also travels slowly, much worse than the equipment of French Navy. Moreover, the guns fired by the Fujian Water Army didn't hurt the iron hull at all, so the ships of the Fujian Water Army were sunk not long after the two armies fought.

This Fujian water army was formed by the left-ranking ministers after years of research. At that time, the First Water Army of China was very strong in China. At that time, it ranked first in China, and the cost of these ships was very expensive. It is said that there are 252,000 taels of silver. At that time, there were 25 Fujian navy ships, most of which were expensive ships. It can be said that Fujian water army was an internal army at that time.

However, after participating in a battle, the Fujian water army was sunk, and it was sunk in less than half an hour. According to historical records, after the war, about eleven ships were destroyed and hundreds of people were injured and missing. It can be said that Fujian water army suffered a serious blow in this battle, but since its establishment, Fujian water army has been very strong in combat capability, which has been defeated, mainly because its strength is not as good as that of the enemy.

At that time, it was the French navy that fought against the Fujian water army. Their ships are all made of iron, and their defense ability is much stronger than that of Fujian navy. Another important reason is that the Qing government at that time was very hesitant about this battle, which led them to have no time to prepare for the war, so the whole army was wiped out.