The invention provides a segmented guardrail type working table provided with an auxiliary working table. The segmented guardrail type working table comprises a main working table and the auxiliary working table, wherein the auxiliary working table is horizontally and fixedly mounted on the back of the main working table through telescopic guide rails, connecting columns are fixedly arranged on the back of the main working table, guide rail fixing support lugs are fixedly arranged on the connecting columns, the telescopic guide rails are mounted on the guide rail fixing support lugs, the mainworking table comprises a main table board, a segmented guardrail and at least one extension part joint, the segmented guardrail is fixedly arranged on the periphery of the upper end surface of the main table board, the at least one extension part joint is arranged on the upper end surface of the main table board, the height of the at least one extension part joint is smaller than or equal to thatof the segmented guardrail, and the auxiliary working table can be pulled out from any side of the main working table. The auxiliary working table is simple and convenient to mount is assembled by aclient on site simply, the segmented guardrail type working table meets use demands of a hospital, meanwhile, production cost is reduced, product quality is guaranteed, packing volume is reduced, andtransporting cost is reduced.