If you are asking what Chinese women are like because you are interested in dating one, the honest answer is that her nationality cannot tell you what she will be like as a partner. She may be funny or serious, outgoing or private, traditional in some ways or not at all. Those are things to learn about her, not qualities you can predict from a country.
“Chinese” can also mean different things in different lives. Someone may have grown up in mainland China, Hong Kong, Taiwan or another place, or in a Chinese family elsewhere. She may speak Mandarin, Cantonese, another language, or none of these. Even two people from the same city can have very different relationships with family, culture and dating.