The invention discloses a member for connecting a blanket plate and a support beam. The member for connecting a blanket plate and a support beam comprises a stud bolt passing through a blanket plate screw hole. An upper part and a lower part of the stud bolt are provided with an upper nut and a lower nut. A bolt connection fastener is arranged between the lower nut and the support beam. A sleeve is arranged between the upper nut of the stud bolt and the blanket plate. A vertical groove opening is arranged on a wall of the sleeve in a vertical direction. A horizontal groove opening is arrangedon the wall of the sleeve in a cross section direction. Lower ends of the horizontal groove opening and the vertical groove opening are communicated. A horizontal hole is arranged at the stud bolt. Ablock pin passing through the horizontal groove opening or the vertical groove opening is driven into the horizontal hole. A jump ring sheet is arranged at a lower part of the horizontal hole. A spring is installed at a lower part of the jump ring sheet. The member for connecting a blanket plate and a support beam realizes single-side fastening through assembly of the blanket plate and the support beam so that effective reconstruction on the prior art is realized and manpower is saved. The member for connecting a blanket plate and a support beam is suitable for use in foundation pit engineering and shows obvious advantages. Through the member for connecting a blanket plate and a support beam, safety of underground construction and ground transportation is guaranteed.