Horizontal sofa chair

The utility model relates to a sofa, and particularly relates to a horizontal sofa chair. The horizontal sofa chair comprises a seat cushion, a backrest, a support foot base and a support foot, wherein the backrest is articulated with the seat cushion; one end of the support foot base is articulated with the front part of the seat cushion; and one end of the support foot is articulated with the side surface of the support foot base, and the other end of the support foot is a movable end. When the structure is in use, only the backrest is backwards pressed, then the support foot base is rotated, the support foot is opened, so that a deck chair for a person to relax in a lying way is formed; when the structure is folded, the support foot, the support foot base and the backrest are sequentially reset; and a portable movable device is arranged, when the structure is moved, a rotary rod is rotated to support the seat cushion, the motion is very easy, and if the structure is moved under an open condition, an auxiliary pulley is utilized to be matched with the portable movable device.