Abstract: It has been found that human’s faster moral decision-making illuminates their moral characters. Considering that the speed of decision-making is an important attribute that people can perceive about the behavior of intelligent machines, this study aims to explore how the speed of moral decision-making by intelligent machines affect people's trust in them compared to humans. A 2 (decision-making speed) × 2 (decision-making content, moral vs. immoral) situational experiment shows that the presence of moral behavior lead people to trust for both intelligent machines and human beings, but faster moral decision-making increases people's trust in them only by intelligent machines. In addition, human’s competence perception of intelligent machines is found to play a mediating role between the speed of moral decision-making by intelligent machines and people's trust in them. Thus, the current research has indicated that the speed of moral decision-making by intelligent machines can affect people's trust in them, and there are different mechanisms for people's speed perception of moral decision between intelligent machines and human beings.

Key words: Intelligent machine, Decision-making speed, Moral decision-making, Trust

摘要： 本研究旨在探究智能机器的道德决策速度是否以及如何影响人们对其的信任程度。研究分别以智能机器与人类为道德决策主体，采用2（决策速度）×2（决策内容）的被试间设计进行研究发现，对于智能机器和人类，道德性决策均会使人们对其信任，而快速道德决策提高了人们对智能机器的信任程度；此外，研究发现能力感知是智能机器道德决策速度影响人们对其信任程度的中介机制。研究表明人们对智能机器与人类的道德决策速度知觉存在差异。

关键词: 智能机器, 决策速度, 道德决策, 信任程度