The line-drawing found on the west facade of the Center Pillar inside Cave 9 at Mogao Grottoes was known as the Painting for God of Songshan Mountain sending a pillar by the inscription written on the wall,the motif of this painting wasn’t ascertained.According to several inscriptions written on the wall of this cave has been recognized,author named the painting: Painting of God of Songshan Mountain sending a pillar to the Soul Hall.It described that when Empress Wu Zhao built the Soul Hall,the god of Songshan Mountain sent her a pillar.This article studied the historical events of Wu Zhao building the Soul Hall,apotheosized Songshan Mountain,loved auspicious things and discussed the significance of this painting.