Rotary student desk with extensible space

The invention relates to a student desk, in particular to a rotary student desk with extensible space. The rotary student desk with the expandable space is large in desk capacity and high in use value. The rotary student desk with an extensible space comprises a bottom frame and a lifting mechanism arranged on the bottom frame, and a book clamping mechanism arranged on the lifting mechanism. According to the invention, the effect of expanding the storage space is achieved, through cooperation of the lifting mechanism, the book clamping mechanism, an overturning mechanism and a stretching mechanism, the space needed for placing books can be reduced, the storage space of the books can be expanded; in addition, the effect of increasing the use value of the desk is achieved; and through cooperation of a heating mechanism and a shielding mechanism, students can be warmed by themselves when the temperature is low, and books can be protected from being dirtied when the students sweep the books. 本发明涉及一种学生课桌，尤其涉及一种旋转式