此文係對希特勒與史達林治下種族滅絕之比較。此二政權皆宣稱欲建立新世界，並將人類之謬誤改正；其手段及結果即為屠殺。 文中就以下項目進行比較：其元首即位前之生平、種族理論，以及種族滅絕之史實。其中就國家社會主義方面，以生存空間四論為核心，並以生存空間如何調整土地良善比四論來檢測德國和蘇聯當時的種族滅絕情形；另外有生命之泉的相關研究。文末則針對種族滅絕之理由及原因進行討論，並以如何預防種族滅絕提出方法。 / This article is a comparison of genocides under Hitler and Stalin regimes. Both regimes has a goal to establish a new order and tries to correct to false of human nature, which resulted in a mean of mass killing. In the article these genocides are compared in several dimensions: the background of the totalitarian leader before they came to power, the basic theory on races, and the fact of history and the genocides. The four means of adjusting population to fit the Lebensraum is introduced under the chapter of National Socialism, and used to examine the genocides of Hitler and Stalin regimes. In the last part of the article, the reason and the cause of the genocides has been examined and a conclusion of how to prevent future possible genocides has been made.