can it support emoji

[DoMySon]

sometime i need show the emoji to the terminal,it's look so cool.

[nsf]

Termbox just sends unicode symbols for the terminal to render. There are some emojis in unicode. The rest is up to the terminal. Just google "emoji in linux terminal", there are some guides about using custom fonts and so on, e.g. https://askubuntu.com/questions/781851/use-emoji-inside-terminal.

However, I never tried it, and there might be character width related problems with it.