With evolutionary game approach,the analysis of the group behavior of illegal capital flows and its final equilibrium can come to a conclusion that we can not expect that this behavior will soon be curtailed by strengthening the punishment with limited efforts for the cross-border flows of illegal capital.As for the supervisory authorities,the cross-border flows of illegal capital can not be controlled,so in order to try to curb such acts,the punishment for the perpetrators should continue to be strengthene...