There is disclosed a folding type bed including a support frame, a main frame coupled to the support frame, a back support part provided on the main frame, a central support part of which the length is adjustable by an external force on the main frame, a first driving module coupled to the main frame or the support frame, a rotary member rotatably coupled the main frame and coupled to the other end of the first driving module, spaced apart a predetermined distance from a coupling shaft with the main frame, and a first connection module slidingly coupled to the back support part and rotatably coupled to the central support part simultaneously, to rotate the rotary member when the first driving module is extended so as to tilt one portion of the back support part and to slidingly move the central support part simultaneously.