A work of art is valuable to a society.

[rock-onn]

A work of art is valuable to a society.

Is the article 'a' should be used before the word 'society'?

[rock-onn]

I am sorry for this post. I got the answer, the word 'society' is an uncountable noun.

[GoesStation]

Society​ can be countable or uncountable.

[jutfrank]

I am sorry for this post. I got the answer, the word 'society' is an uncountable noun.

It's not uncountable if you use a before it.

I think your sentence would be better with the a, especially if you want to keep the a before work of art, but it's hard to say without knowing what you mean. The meaning of your sentence is not clear without context. Perhaps you want to make a general statement about art and its relation to societies in general: Works of art are valuable to societies.