A video of a 90-year-old grandmother supporting her gay grandson and calling for the legalization of gay marriage has gone viral online.

In the 45-second video, the grandmother holds a card calling for the legalization of gay marriage and she explains her grandson's sexuality.

A screenshot of the video from youku.com.

In a strong Fuzhou dialect she said, "I'm 90 years old. My grandson is gay. He is very dutiful and sensible. I love him dearly. I hope he finds a good boyfriend and lives a happy life, and I hope that the government supports him."

The grandson said last year he opened up about his sex orientation to his parents who did not accept it, but his grandmother offer her full support and tried to persuade the parents to accept it.

The video has whizzed around the Internet with many supporting the grandmother's move.

Special: Gay marriage gaining attention