The invention relates to a cage type elevator comprising H-beam columns. The cage type elevator comprises four H-beam columns arranged at four vertices of a rectangle. A top frame is fixed at the top ends of the H-beam columns. A protective mesh is fixed on the H-beam columns on the four sides of the rectangle. A sliding frame is slidably connected to the H-beam columns within the protective mesh. A sliding frame lifting mechanism is mounted on the top frame. The columns are used as rail supports for the sliding frame, and structural strength of the elevator is obviously greater than that of a single-column or a dual-column type elevator; accordingly, the elevator is capable of bearing heavier workpieces. The sliding frame is arranged within the protective mesh in a cage form, the sliding frame never impacts technicians operating nearby, during lifting, and safety is significantly improved.