There are ethical politics and political science in a nation or a state. We should elaborate and explain the relations between the two sides of the Taiwan Straits and the crux of the problem starting from the historical and cultural angle, and construct a kind of ethical political logic of honesty, mutual understanding and reconciliation. Locating the crossstrait relations over the past 60 years from the ethical politics, we can see that the two sides are the transformation of the ethical community, as well as the memory separation of the community. From the ethical politics, both sides should be honest in the face of victory and failure of the historical memory. Honesty is the first key to open the door of national reconciliation and the starting point to the road to peace and unity. On this basis, the two sides can move toward national reconciliation. Only reconciliation can bring real security. Reconciliation needs hope and wait. It is the reconciliation of peace and justice, which will be achieved eventually.