2 inches. According to Article 7 of Chapter 4 of the Interim Regulations on Marriage Registration Work, the parties shall submit three 2-inch recent half body, bareheaded photos of both parties.
Marriage certificate photo requirements
1. It must be a recent half body bareheaded photo of both parties.
3. The photo size is 2 inches.
4. Do not use life photos or art photos, let alone composite images.
5. Do not excessively manipulate the image, and preserve the characteristics of the characters.
6. The exposed part of the person in the photo is usually from chest to shoulder.
7. The photo should be able to clearly identify the person.