This thesis is entitled Overview of Islamic Law Against Buying and Selling Fruit Practices in Trees by bulk (Case Study in Rejosari Village, Wonoharjo District, Boyolali Regency). The problems in this paper revolve around the practice of buying and selling mangoes in trees through bulk in Rejosari Village, as well as how Islamic law reviews the buying and selling of mangoes in trees through bulk in Rejosari Village. The location of this study was located in Rejosari Village, Wonoharjo District, Boyolali Regency. The reason for this area being used as a place of research is because in the village of Rejosari there was a sale and purchase transaction of tree mangoes in bulk. This writing uses field research (field research), namely by going down to the field directly or the location of research. Data collection techniques with observation, interviews, and literature studies, The data from this study consists of descriptive qualitative in which this study aims to raise facts, circumstances, and phenomena that occur when the study takes place and presents as is. From the results of the research obtained in the field it can be concluded that the practice of buying and selling mangoes in trees by means of bulk in Rejosari Village, namely, the seller and the buyer make a sale and purchase contract that is stated in agreement with the price determined by the age of the tree. Also, the buyer pays directly to the seller. The practice of buying and selling mangoes in trees by bulk in Rejosari Village in terms of Islamic law is not permitted. Because in this practice there are elements of gharar and bondage, which in the view of Islamic law these two elements are prohibited because they violate the Shari'a and can harm one party, both the seller and the buyer.