There are some drama works named `the Theater of the Absurd', whichexpress that a unifying force is lacking in the world and individuals live with a sense that itis lacking. These sense of the absurdity was caused by the death of God. After the deathof God, some writers began to write works in which people live in the world without God. In this paper, I take mainly four writers–Camus, Sartre, Kafka and Beckett— from themand treat the relation between the death of God and the absurdity in their works.