Abstract: The present invention relates to an anatomic desk chair for office or home work, which has a displacement system composed by a plurality of wheels which allow the user to move from one location to another, wherein the chair is characterized by comprising a backrest having a frame with a tire-type assembly system, i.e. wherein the backrest as such is made of an elastomeric material and is assembled in the frame by pressure and these are adjusted through a series of screws attaching the frame and the counter-frame. Thus, the assembly system is composed by a back support or “skeleton” which corresponds to a piece injected in an elastomer requiring of a stretching process subsequent to the injection in order to obtain the shape and dimension sufficient to assembly in the frame with a tire-type system, after such skeleton-frame assembly the counter-frame is assembled through screws as previously indicated.