I graduated from an art college and want to take the postgraduate exam. The school said I could work for two years.

Yes, there are certain requirements for applying for graduate students. Now that you are a college graduate, you generally need the same academic ability to apply for the exam. In other words, two years after graduation, whether you have a job or not, you will be promoted to the same academic level.

In addition, if you want to be more sure, you can just search an article on the internet, the enrollment brochure of art graduate students in a university. For example, the central academy of fine arts graduate enrollment brochure. There will be entry conditions in the admissions brochure. You'd better check it. There is not much difference in the conditions for applying for admission in most schools.