With the endless development of society, the labor theory of value should keep up with the times. Now the tertiary industry is developing so fast, someone says the value creation of tertiary industry could not be explained by the labor theory of value, or even destroy the system of this theory. In this article, we quotes the originals of Marx to show the value creation totally obeying the labor theory of value, and then point out the researches and developments of this theory are Very important in promoting...