The first Wengzhong (stone grave statue) on the east side of Qianling Mausoleum has many diseases, but cracks are the primary factor that endangers its safety. Through on-site investigations, we determined the crack distribution characteristics of the first Wengzhong on the east side and also analyzed its stability. The results show that there are five cracks affecting the stability of the stone carving, two of which are through and three of which are partially through. The cracks divide the stone carving into five blocks. The center of gravity of the central block has moved forward, and has become, at present, the main power source leading to the instability of the stone carving. The heel block is the key block for the stability of the stone carving. At the same time, there are many secondary cracks, indicating that the object is in an unstable state. The stone carving may suffer from overall collapse in case of failure of steel belts, complete penetration of cracks and earthquakes; therefore, reinforcement and prevention measures are needed. These results can provide a scientific basis for the conservation of the first Wengzhong on the east side of Qianling Mausoleum.