Pastel painting composition as well as preparation method and application thereof

The invention discloses a pastel painting composition as well as a preparation method and application thereof. The composition is composed of the following components: clay, a binder, hexagonal boronnitride, carbon powder, brucite powder, pigment powder and titanium dioxide. The composition can be prepared into pencil leads, powder materials or pressed powder and the like. The hexagonal boron nitride, the carbon powder and the brucite powder are combined, so that the hand feeling effect, the drawing effect and the strength of the system are obviously improved; based on an optimal combinationsystem of the clay, the high-temperature-resistant inorganic nano binder, the hexagonal boron nitride, the carbon powder, the brucite powder, the pigment and the titanium dioxide, the optimal combination of the optimal system strength and hand feeling and the drawing effect is determined. Through the combination of all mineral component raw materials and a matched production process, the finishedproduct has a powdery hand