<p>The present invention relates to a trampoline frame coupling structure. The trampoline frame coupling structure includes: a vertical frame (110) which is hollow on the inside and is arranged in the vertical direction; a coupling member (200) which is coupled to the upper end of the vertical frame and has a bolt groove on an upper surface to be coupled with a bolt; a horizontal frame (120) which is coupled to the upper side of the coupling member; and the bolt (130) coupling the horizontal frame to the coupling member. The coupling member (200) includes: a body unit (210) which is inserted to the hollow space of the vertical frame; and a cover unit (220) which is formed on the upper end of the body unit to be bigger than the body unit to be used as an engaging unit of the hollow space in the vertical frame. The present invention enables the trampoline frame to be installed quickly and easily without requiring a separate member such as a welding machine and enables the trampoline frame to be easily separated.</p>
