The Qur’ân has been a greatest miracle that given to Prophet Muhammad since 14 centuries ago. Inside the Qur’ân, there are many sciences, laws, morality values, etc. One of them is ethics of trader/seller, which useful in daily life, especially to build economics in society. This ethics should be important as often as it’s using in human being civilization.

Focus of this final project is the ethic of trader, i.e. the ethic of trader or seller in the Qur’ân and the implications of its ethical principles to trade context now. The kind of this research is qualitative research and using the method of library research. The primary data of this research are the Qur’ân and the books of interpretation (Kitâb Tafsîr). Whereas, the secondary data are the books and other sources which related to the ethic of trader. Data analysis used by researcher is thematic study (maudlû’i). It means collecting verses of the Qur’ân which have some contents by means those verses talk about the ethic of trader and arranging them based on Asbâb An-Nuzûl (reason of revealing), and then researcher gives some elaboration. Finally, researcher concludes what has been elucidated.

The Qur’ânic verses told and explained about the ethics of trader in many occasions, unless 11 times as in this research. All of them could be divided to three dimensions, pre-trading, in-trading, and post-trading. First, the ethics pre-trading includes the prohibition of misusing property each other and property owned by a weak person. This ethics implication is to get the best condition and build the health economics in the society, using the awareness of caring each other. Second, ethics in-trading includes the command of maintaining the justice, prohibition of alleviating and corrupting the measure, and command to give perfectibility when measuring in order to please each other. This ethics implication is to give the best result (for the consumer; buyer), strengthen believe and erase curiosity between traders/sellers. Third, ethics post-trading includes three functions; reminder (as an inspiration; positive; could be followed), attention (negative, could be a lesson and not be followed), and threat (extreme condition, unforgiving person/group). The implication of its ethics is to remember and be carefully when doing trade using the stories and lessons learned from the Qur’ânic verses.