Frame assembly for swing

According to the present invention, a frame assembly for a swing comprises: an upper frame which supports the swing to allow rotation thereof; and leg frames which support the upper frame on the ground, wherein the upper frame comprises one pair of first and second support frames of which both ends are respectively bent to be parallel to each other, and both ends of the first support frame and both ends of the second support frame are coupled together so that the upper frame forms a polygon or a loop. According to the present invention, the frame assembly can be easily installed even in confined spaces due to easy assembly and disassembly properties of the simple structure, and can support the swing firmly, thereby enabling children to play on the swing safely.