The utility model relates to a chair structure with an inclined angle, which belongs to the technical field of the furniture. A control unit arranged at the bottom of a chair is composed of a main body frame, an inclining adjusting device, a height adjuster, a swing and elasticity adjusting device and a backrest support rack, wherein the inclining adjusting device drives a first connecting rod to shift through a first deflector rod. The worm screw of the swing and elasticity adjusting device drives a worm gear, and the shift of the worm gear changes the tightness of an extension spring. The height adjuster of the chair drives a second connecting rod to shift through a second deflector rod. The utility model has reasonable physical design, simple, convenient and stable adjustment and labor-saving operation, which is suitable for various chairs.