The utility model discloses a damper steel spring floating ballast bed shearing force expansion pin connector which includes a shearing force pin transversely spanning an expansion joint and connected between two neighboring floating ballast beds, as well as shearing force rings used for locating the shearing force pin; two shearing force rings are respectively arranged at each side of the end parts of two neighboring floating ballast beds; the middle parts and the lower parts of the shearing force rings are pre-embedded in the floating ballast beds and are fixedly connected with steel bars inside the floating ballast beds; the upper parts of the shearing force rings extend out above the floating ballast beds; one end of the shearing force pin is connected with a limiting plate; the other end of the shearing force pin is provided with a pin hole; the shearing force pin penetrates the shearing force rings on two neighboring floating ballast beds in sequence; an opening pin used for limiting is penetrated in the pin hole; and an adjusting space is reserved between the pin hole and the nearest shearing force ring. The shearing force pin can displace freely to adjust the different deformation between two neighboring floating ballast beds. The shearing force pin is arranged on the surfaces of the floating ballast beds, which is convenient for checking. The damper steel spring floating ballast bed shearing force expansion pin connector is suitable for damper steel spring floating ballast beds and other various floating ballast beds.