Trade is a form of business that is run by many people around the world, ranging from trading various kinds of daily necessities or primary needs, to selling the need for luxury goods
for human satisfaction. For that, to overcome the many needs of life, they try to outsmart them buy products that are useful, economical and efficient. One of the markets they aim at is the
second-hand market or the so-called trashy market. As for a trader at a trashy market, they aim to sell in the used goods market with a variety of reasons. These reasons include; first, because it is indeed to fulfill their needs. Second, the capital needed to trade at trashy markets is much smaller than opening a business where the products come from new goods. Third, used goods are easily available and easily sold to buyer. Here the researcher will discuss the behavior of Muslim traders in a review of Islamic business ethics (the case in the Jagalan Kediri Trashy Market). Kediri Jagalan Trashy Market is central to the sale of used goods in the city of Kediri. Where every day there are more than 300 used merchants who trade in the market. The focus of this research is how the behavior of Muslim traders in the Jagalan Kediri Trashy Market in general. Then, from the large number of traders, of course not all traders have behavior in accordance with Islamic business ethics, as well as traders who are in accordance with the rules of Islamic business ethics. This study aims to determine how the behavior of Muslim traders in the Jagalan Kediri Trashy Market in buying and selling transactions and to find out how the behavior of Muslim traders in the Jagalan Kediri Trashy Market in reviewing Islamic business ethics.
Key Words: Trade, loak market, Islamic business