No.
The country does not have any regulations that require the use of three words, or prohibit the use of two-word documents. It only stipulates that uncommon words and alphabetical symbols cannot be used, but there is no stipulation on the number of words.
However, the Public Security Bureau and the Civil Affairs System recommend that residents give their children three-letter names to avoid the high rate of duplication of two-letter names. From an expert's perspective, the more words in a name, the lower the repetition rate. Therefore, parents are encouraged to use fewer single words and try to name their children with two words.
Legal basis:
"The People's Republic of China and the Civil Code"
Article 1012: Natural persons enjoy the right of name and have the right to Decide, use, change or allow others to use your name, but it must not violate public order and good customs.
Article 1,015 A natural person shall take his father’s or mother’s surname. However, under any of the following circumstances, he may choose a surname other than his father’s or mother’s surname:
(1) Choose the surname of other direct elder blood relatives;
(2) Choose the surname of the caregiver because he is raised by someone other than the legal caregiver;
(3) Do not violate public order and good customs other legitimate reasons.
The surnames of natural persons from ethnic minorities can follow the cultural traditions and customs of their own ethnic groups.