Abstract: This paper studies the logic of reasoning throughout the decision-making activities based on the careful weighing of all possible consequences for the future,highlighting the value of the role of basic logic inference theory. The study of logical reasoning of decision-making problems is returned to the most basic problem of logical reasoning, and the focus is on logical reasoning and the actual decision-making in life. In the relationship between decision-making and logical reasoning, we always adhere to the most basic form of reasoning in common sense. This paper studies the logical reasoning applied in the process of scientific decision-making,conducts the logical analysis and evaluation research with the typical examples of the negative, finds out the normative criteria that the logical reasoning controls the mistakes in decision- making, and finds the way to avoid mistakes. This article shows a practical innovation in return to practice.

Key words: decision-making, reasoning problem, argument problem