About the meaning of these two words

The detailed meanings of these two words can be seen in the English-Chinese double explanations. Collins Advanced Dictionary explains these two words as:

A craftsman is a man who makes things skilfully with his hands.

Translated into Chinese:craftsman is a person who can make things skilfully with their hands.

Translated into Chinese:craftsman is a man who makes things skilfully with his hands.

The English explanation focuses on being able to make things.

Craftsman; artisan An artisan is someone whose job requires skill with their hands.

The point of the English explanation is that the job requires skill with their hands.

So, if one prefers artisan, one should choose craftsman.

Based on the dictionary's explanation, and my experience in learning English, neither word has a pejorative meaning.

Personally, I prefer artisan, both because of the influence of artistry yazhi (meaning artistic talent, skill), and because the word is a bit broader than craftsman.

It's hard to recommend a better word because of the lack of context. But I'll give you some words with similar meanings:

artificer, crafter, handcraftsman, handicrafter, tradesman, smith, wright, master.