The invention relates to an exercise chair, in particular to a fitness exercise chair for exercising arms and legs. Users can doubly exercise by the aid of the fitness exercise chair for exercising the arms and the legs, and can conveniently watch video on mobile phones when exercising, and accordingly boredom can be reduced. The fitness exercise chair for exercising the arms and the legs comprises a mounting plate, chair legs, a hand exercising component, a leg exercising component, a transmission chain, a movable component, a rotary component, a clamping component, a seat plate and a leaningplate. The leg exercising component and the chair legs are sequentially fixedly connected to the top surface of the mounting plate; the seat plate is fixedly connected to the tops of the chair legs,and the hand exercising component and the leaning plate are sequentially fixedly connected to the top surface of the seat plate. The fitness exercise chair has the advantages that the users can doublyexercise by the aid of the fitness exercise chair, and can conveniently watch the video on the mobile phones when exercising, and accordingly the boredom can be reduced.