First of all, you should take admission in an institution that offers a four year undergraduate degree in the field of art management.
Make sure you have also taken subjects of art management, facility management, marketing, art history and fund raising. These courses will help you in becoming a good curator of an art gallery.
After completing your undergraduate degree, you should take admission for a graduate or advanced degree in Art Management. It will help you in getting in-depth knowledge and will enable you to become a competent professional as an art gallery curator.
During your advanced degree, do not forget to take courses including art consulting, management and art’s public policy. These courses will develop an insight about the subject area and will make you a worthy art gallery curator.
During your academics, try to complete an internship in the art gallery of your institute or somewhere else. This practical experience will help you to a greater extent and you will have a better idea of how things work in an art gallery.
After completing your education, apply for different art galleries for the position of curator. The chances are very high that you will get good response considering that you have got a specialised education required to become a curator.