When choosing a name in China, there is generally no limit on the number of characters, but there are some other rules and habits.
First of all, Chinese names usually consist of two parts: a surname and a given name, separated by a space. In formal situations, people usually use only their first and last names, rather than other names such as aliases, pen names, pseudonyms, etc.
Secondly, when choosing a name in China, it is usually necessary to avoid using inappropriate words, such as unlucky numbers, derogatory words, words with strong religious or political overtones, etc. In addition, some words may have unlucky pronunciations in certain dialects or regions and should be avoided.
Finally, when choosing a name in China, some people will consider the pronunciation and meaning of the word. They may choose some words with auspicious, beautiful, harmonious and other connotations, or choose some words with good pronunciation and rhythm.
In short, when choosing a name in China, there is no clear limit on the number of characters, but you must abide by some rules and habits, avoid using inappropriate words, and consider the phonology and meaning of the words.