The relationship between prioritarianism and egalitarianism is one of the most important and debatable questions in the realm of contemporary political philosophy.Regarding this question,Professor Yao Dazhi claims that prioritarianism is a conception of equality more reasonable than egalitarianism.In my view,however,prioritarianism is not a conception of equality.It's just a policy of distribution which gives priority to those who are worse-off.On the other hand,egalitarianism is a just principle of distribution approved by egalitarians-equal distribution is just,otherwise,unjust.There is no such question as to which one is more reasonable between prioritarianism and egalitarianism.