A double-state working kneeling chair has two forms: a kneeling mode and a seat mode. The double-state working kneeling chair includes a seat support and a kneeling support, where a sitting surface is arranged at an upper end of the seat support, and the sitting surface and the seat support are fixedly connected; a kneeling surface is fixedly connected to an upper surface of the kneeling support, one end of the kneeling support is hinged with a lower end of the seat support through a rotating mechanism, the kneeling support has a degree of freedom of rotating upward along the rotating mechanism, a clamping structure is arranged at the other end of the kneeling support, a clamping block is arranged at the upper end of the seat support, and the clamping structure matches the clamping block from bottom to top; and when the kneeling chair is in the kneeling mode, the kneeling support is placed in parallel to the ground, and at the moment, the kneeling surface is parallel to the ground.