When it comes to the concept of "automatic repayment in later life of whatever one does", everyone almost always, with no hesitation, thought that Chinese had borrowed it from a foreign culture, Buddhism, and adopted it as their own. In fact, long before the coming of Buddhism, Chinese had developed a similar view. Yang Liang-Shen has pointed it out, "In China, there is a deep-rooted tradition, that is , a belief in the repayment by Nature or the almighty Spirit." But for this similarity in Chinese soil, could the Buddhism's past-present-future-repayment not be easily planted and cultivated there. Along the winding flow of Chinese long history as we track back, can we see that most of her thoughts and concepts find their sources in the Three-Dynasties(c.2183-221B.C.). And the Six- Classics, which had been written down during that 2000years, are one of the most important documents in that nature. The writer has long been interested in that subject, and chosen the Book of History, one of the Six-Classics, as an initial step to work on with. The main idea of the "past-present-future Repayment" in Buddhism is karma. In other words, one's happiness calls for good karma, and bad karma results in misery. The fruit one gets comes form the seed of karma he plants. What decides one's density comes from within, not without. While Chinese concept of repayment is somewhat different. They think there is an almighty or supernatural spirit who rights the errors and judges if one have been good or bad and gives him what he deserves. According to the Book of History, the Judge is the sky, or the almighty spirit. This article is going to discuss the personified sky in the Book of History.