The article trys to disclose the cause of Chinese ancient science and technology character according to the official-centered view. Chinese ancient science and technology characteristic is to take technology seriously and look down on theory. Why?
Mohism aimed not only at developing pure theories,the departure and order of Mohist 'study was "developing advantages and eliminating disadvantages for the word." Mohist enriched and developed the ancient Chinese science and technology,and affected many famous ancient scientists .
(2) Daoism's alchemy practice for a long time involved in much knowledge such as chemistry, biology, medicine and pharmacy, and left precious wealth to the ancient chinese science and technology. But due to lack of the entire process, hypothesis-testing-conclusion, of the Western experimental science, Daoist's alchemy did not ascend to geniune level of science and technology at length.
Persisting in the methodology of the historical materialism, breaking up the cultural shadow of "antecedent rich", scanning all the historical items of science and technology with a scientific attitude, and comparing objectively, you can find that it is true that the history of ancient Chinese science and technology has been wrongly read as the one of "antecedent rich", that means that the there is no premise for the reasoning of "Puzzle of Joseph Needaham", therefore, any work of settling the puzzle is useless.