Don Marquis pointed out that abortion is serious wrong morally.His’ article,”Why Abortion Is Immoral?”,has been highly anthologized at April 1989. Marquis criticizes the argument between anti-abortion and pro-choice always uses the same point to attack each other.It is the result of stand-off results and forming a vicious cycle. Marquis explains why abortion is immoral without assuming the personhood of the fetus.It skips the argument of Judith Thomson, which is the right of the mother to choose