The subject innovation relates to assembly and disassembly the assembly kit for easy chairs, and jubujae pair of which ju column of the chair, and a support member for supporting the jubujae in the middle, starts to be bonded to the top of the jubujae, the It includes a seat plate that is coupled to the middle of the vertical jubujae. And an extended front leg in the circumferential member up and down, parallel to doedoe located in the rear of the front leg and the characters h made of a connecting bridge connecting and rear leg formed longer than that of the front leg, the front leg and the rear leg It has a shape. At this time, the upper end of the rear leg is formed with a first coupling groove is, the front and rear of the connecting bridge is formed with a second engaging groove and the third fastening groove. Further, before and after the connecting bridge is formed first coupling ball and the second fastening holes. The support member comprises a first support member which is assembled through the first fastening hole, the second support member which consists of a second assembly through the coupling hole. The first fastening protrusions second fastening protrusions which are respectively inserted into the first support member and the second the first the first engaging ball and both ends of the second support member coupling hole is formed. The backing has a fourth coupling groove that is inserted into the upper end of the rear leg is formed. The seat plate has a first seat plate which is assembled to the front end of the connecting leg, it consists of a second seat plate which is assembled to the rear end of the connecting bridge. Said first seat plate is formed on the fifth fastening groove, it said second seat plate is formed with a sixth fastening groove.