Ku Kai-Chih's ＜Admonitions of the Instructress to the Palace Ladies ＞is now in the collection of the British Museum. the Screen Paint-drawings attributed to Sima Jin-Long Cemetery in Northern Wei, and the pictorial brick of the ＜Seven Sages of the Bamboo Grove and Rong Qi-Qi＞which found in Nanjing and the carvings of Ningmao stone chamber in Northern Wei are often compared in painting circles, confirming that their styles are of the same period. Amongst these pieces, the＜ Admonitions of the Instructress to the Palace Ladies＞ has been attributed to Ku Kai-Chih but still remains to be proved.

What the limited information tells us is that the depictions of characters and landscape correspond in style. However, there are great differences in terms of composition and the ratio between persons and nature. Chu Chia-Hua is of the opinion that the paintings attributed to Ku Kai-Chih in the history of painting, are not necessarily more artistic than the above lacquer screens, brick relieves, or line carved stone coffins; not to mention that most of his works are said to be copies from the T'ang or Sung dynasties.