The variable-pitch recliner is designed by three-stage adjustment of the back slope. It can allow the user to adjust between the highest and lowest slope and can provide a comfortable sensation to the user. The chair feature is the backrest of fish bone structure. This structure can make the user feel stable and comfortable, and also advance the durability of the chair. We design the fold way both in longitudinal & transverse direction which could reduce whole volume to the minimum, and the height of folded chair is even smaller than opening. It would be easy to storage and carry.