Human subjective factors will play a decisive role in the formation of the use value of works of art. The value of works of art is still the undifferentiated human labor condensed in it. As the market currency expression of its value, the price of works of art reflects the exchange rate between each other and the market's commercial recognition of the value of works of art, and is mainly determined by the value created by the artist's own labor and the contradiction between supply and demand in the Art Market. However, due to the independent, individual, creative and unrepeatable nature of art creation, it is different from the mass production of general commodities in terms of the creation process and time. The value formation of art also has uncertainty in advance. Therefore, art can also be called free spiritual production, which cannot be completely equivalent to general commodities.