Why didn't the Qing Dynasty allow Manchu-Chinese marriages?

Man and Han don't marry, in other words, the flag bearer doesn't marry. This is the Manchu flag system, ancestral system or ancestral training, which gradually became the rule of the whole people. Although it does not belong to the law, Manchu people have observed this rule for hundreds of years, and few people have violated it.

Manchu, as the ruling class at that time, needed to maintain the purity of ethnic origin. If it intermarries with the Han nationality, it will affect the descent of future generations. Moreover, Manchu and Han nationality have great differences in customs and language habits. In addition, if Manchu women marry Han nationality, it will affect the increase of Manchu population.

Extended data:

Abolish the non-marital system of Manchu and Han;

In the 27th year of Guangxu (190 1), on December 23rd, Cixi issued an imperial edict:

I am very kind, in the atlas area. The court never discriminated against Manchu and Han subjects. However, the old rules did not allow marriage, because at the beginning of entry, customs and language were more or less self-evident and it was forbidden to do so. Today, the same is true of the wind, which has been more than 200 years. I should bow to human feelings and expel this ban.

Man Han and all the officials and people. It is allowed to marry each other, and there is no need to stick to it. For Han women, foot binding has a long history, which hurts the sum of creation. After that, we should earnestly persuade the gentry's home to make it a household name and gradually get rid of the accumulated habits.

It is absolutely forbidden for officials to use the word "ban" to disturb the people. If there is a female year in the draft, the Eight Banners will still be chosen, so as not to repeat the previous mistakes as a sign of restriction and sympathy. Notice this notice.

References:

Baidu encyclopedia-Manchu-Chinese marriage