Provided is a supporting structure for a fruit tree branch for supporting a side branch of a fruit tree by using a supporting strap having a predetermined width or greater. Even when load due to the side branch increases by providing a plurality of inserters into which the supporting strap is inserted and combined with a length adjusting member multiple times, the supporting strap may be prevented from easily slipping or escaping from the length adjusting member, thereby fixing the side branch to a wanted position.
