Tangka is a kind of scroll painting mounted on silk. It has distinctive ethnic features and a strong religious flavor. Its unique artistic style is highly prized by the Tibetan people.

The origin of tangka can be traced back to the early Tubo Kingdom. During the 7th century, King Songtsan Gambo united Tibet. To strengthen political, economic and cultural exchanges with Tibet's neighbors, he married Princess Chizun of Nepal and Princess Wencheng of the Tang Dynasty. Around this period he ordered the construction of Potala Palace and some other grand edifices. To decorate them, he drafted a large number of people to paint murals. This greatly promoted Tibet's art of painting. According to the Catalogue of Jokhang Monastery written by the Fifth Dalai Lama, "The King (Songtsan Gambo) used the blood from his nose to paint a portrait of the White Lhamo. Later, while a statue of the White Lhamo was being sculpted, the portrait was hidden in the abdomen of the statue." This is the earliest record of a tangka painting. This tangka has been lost, but we can conclude that tangka was a new Tibetan art form which flourished during the reign of Songtsan Gambo.

Following the spread of Buddhism, Buddhist art also flourished. Since tangkas are easy to make, not limited by the variety of buildings, and easy to hang and store, they were used as a means to spread Buddhism. From then on, tangkas and murals developed side by side, becoming two bright pearls in the history of Tibetan painting.