Tiantishan Grottoes (Chinese: 天梯山石窟) are a series of rock cut Buddhist cave temples in the Liangzhou (涼州) District of Wuwei (武威) City, Gansu (甘肅) Province, China. With a history of 1,600 years, Tiantishan Grottoes are amongst the earliest grottoes excavated in China.
In 1958, due to the construction of the Huangyanghe Reservoir (黃羊河水庫) near the Tiantishan Grottoes, most of the statues and murals were relocated to museum for preservation.
In 1992, a dam was built to separate the water from the Big Buddha Cave (大佛窟), which had been soaked in the water for over 30 years.
Excavated from the time of the Northern Liang (北涼; 412–439), carving, decoration and subsequent modification of the caves continued through the Northern Wei (北魏) and Tang (唐) to the Qing (清) dynasty.
In ancient times, Wuwei was called Liangzhou (涼州) and is the eastern terminus of the Hexi Corridor (河西走廊). Numerous Buddhist grottoes and temples in the area attest to its role as a path for bringing Buddhism from India and Afghanistan to China.
天梯山石窟位處綠洲之中，四面被光禿禿的黃色丘陵圍繞，仿如世外桃源，景色怡人，看完石窟後不妨到村內逛逛。
