Buddhism in Thailand mainly is Theravada. Thai people can divided into threecategories; ones who believe in Kamma, ones who not believe in Kamma, the last one is ones who believe in Kamma half disbelieve in half. Kamma is the results of our action and reaction it could be good deed or bad deed, which we call the low of Kamma, it is unchangeable. Early Buddhism was during the lifetime of the Buddha until the 1st revision the Tripitaka （Grand Council）. This thesis emphasizes the research of three kinds of Kamma, Ten kinds of Kamma and Twelve kinds of Kamma. Law of Kamma is the result of action according to its intension mental.This is the cycle of life which no one can avoid except follow the noble eightfold path. The topic of this thesis is “Analysis of Kamma in Early Buddhism”. The research follows Theravada Buddhist of Thai Tripitaka from Mahachulalongkornrajvidyalaya University (MCU) and Mahamakut Buddhist University (MBU) and the other Dhamma texts. This research points out the differences of good kamma and bad kamma, cause and effect of law of kamma and practicing the noble eightfold path to breakdown the cycle of life. Human search for happiness but it will not fall from sky easily without making good merit by giving, accepting precepts and purifying your mind with meditation. This is such the way to achieve truly happiness.
