In the process of exploring the capital form, structure and its movement, Marx analysed the inner relationship between capital, science and technology from multiple aspects. He pointed out the scientific development trends of technology, the capitalization of science and technology, the technological operation of capital. It is the evolution of the basic ideas of Marxs technology thought from a narrow technology concept to the broad technology idea. We should not only understand what Marx said, but what he meant, and the metatheory behind. Although Marx did not clearly put forward and discuss the broad technology concept, he really discussed the major issues as technological operation of capital in the view of broad technology in his old age.