How moral decision-making occurs, how it matures over time, and the relationship with
behavior is complex. To fully understand moral decision-making, moral development, and moral
behavior, it is necessary to know how individuals make real-time moral decisions; How do the factors
that influence ethical decision-making interact with each other; What processes or factors need to be
developed to form mature ethical decisions; How these processes develop and change over time. Through
two fMRI studies and one intervention study, this study explores the changes and development tracks
of individual brain activity in making real-time moral decisions from the perspective of behavior and
cognitive nerves, and by manipulating the cognition (risk level), emotion (empathy), and social factors
(moral context, interpersonal relationships) that affect moral decisions, while improving the ability and
level of individual moral decisions through empathy training, On this basis, a theoretical model of moral
decision-making based on the social information theory framework (SIP) is constructed.