Provided is a support leg connecting structure for a tripod. The tripod includes a central tube, three support legs, three braces, and an upper tripod unit. The support leg connecting structure includes: a flat fixing portion formed at an appropriate portion of an outer wall of each of the support legs by pressing and recessing, and provided with a piercing hole; a recessed curved surface disposed between the flat fixing portion and an undeformed portion of the support leg; a curling portion formed on one end of each of the braces by curling, and having a through hole, the curling portion surrounding a periphery of the through hole; and a fastening part. The piercing hole corresponds to the through hole, the fastening part is inserted through the piercing hole and the through hole, the support leg and the brace are pivotally connected to each other around the fastening part.