The invention discloses a combined type office bookcase which comprises a strip-shaped bearing base. A combined type book bearing mechanism is arranged on the upper surface of the strip-shaped bearingbase. A supporting mechanism is arranged on the lower surface of the strip-shaped bearing base. The combined type office bookcase has the advantages of being convenient to detach or combine for use,beneficial for bearing books, convenient to dry and ventilate, capable of protecting the books, and convenient to use for a temporary rest.