The theory of "new planned economy", which began in the 1960s, has experienced a development process from "computer socialism" to "big data socialism". Its basic theoretical creed is that "algorithm is the king", i.e., the planning of socialist production can be realized by the means of information technology. The typical expression of this creed today is that big data makes the entire economic life a visual picture, and that the "invisible hand" is clearly identifiable. Although today's "new planned economy" theorists hold the promise of "market", they have completely laid the economic plan on the basis of big data, and thus proposed the practical concept of comprehensive recovery of planning means, so that they fall into market-denial theoretical situation, i.e., denying the existence of the basis of big data. Going out of the "data fetishism" fog, we can see that big data can't reshape the "new planned economy", but it helps to improve the socialist market economy: as a new tool for macroeconomic regulation, big data can promote a win-win situation of "more effective market" and "more effective government".