The main grottos in Tibet include Chalha Lupo in Lhasa, Lhaze in Lhatse, Zhayapa Zhayapa in Taktse, Tinchong Lhakang in Rutok and Donggar Ritog in Tsada for two clay sculptures, the others are of stone. Among 71 statues, 47 were made during the period of the Tubo Kingdom. The technique used for their expressions was influenced by the carving styles of India and Nepal. The statues show the carving style prevailing in the early period of the Tubo Kingdom.

Negya Qoimo grotto in Gampa has the square flat surface, and 33 wall reliefs. In addition, there are relievos of auspicious beasts and flowers and plants including lions, elephants, horses, peacocks and lotus flowers. The flat surface of the Lhaze grotto is square, and the relievos on the back wall are statues of five Buddhas. Zhayapa grotto has a D-shaped flat surface, and many animal head portraits are carved under the front center column. The above three grottos are the major discoveries made after the Chalha Lupo grotto in Lhasa. These grottos and statues are generous in stroke, and simple and unsophisticated in style. They were created during the Tubo Kingdom. These discoveries expand the distribution areas of Chinese grottoes, enrich the contents and forms of Tibetan grottoes, and have important artistic research value.

Donggar Ritog grotto mural ruins were discovered in 1 992 about 40 km north of Tsada in Ngari. So far, it is the largest ancient grotto ruins of Buddhism discovered in China. Donggar and Ritog are the names of two adjacent villages. The part of the ruins distributed in Donggar Village is a group of grottos. Grotto murals were painted with mineral pigments. With a history of nearly 1, 000 years, the large-scale grotto murals with intact coloring have very high archaeological and artistic research value. The part of ruins distributed in the Ritog Village is large, and consists of monasteries, castles, grottos and towers. It is one of eight major temples built in the period of the Guge Kingdom during the 10th century.