A conductor assembly structure for a rail-type terminal device, comprising: a conductor assembly; the conductor assembly having a base portion, a first area and a second area, the first area and the second area being connected to the base portion and extending laterally respectively; the first area and the second area being respectively formed with a bowed portion and a first section and a second section connected to the bowed portion, the first section and the second section being configured to be snapped onto a grounding mounting rail; and wherein at least one of the first area and the second area being provided with a load arm and an elastic member connected to the load arm, the elastic member being movable in response to movement of at least one of the first section and the second section for accumulating and releasing energy and for assisting in increasing an elastic force on the grounding mounting rail of at least one of the first section and the second section; wherein at least one of the first area and the second area defines a space, and at least one of the first area and the second area is provided with a shoulder close to the space to define an opening communicating with the space; wherein the load arm is in a T-shaped configuration and has a secondary arm, one end of the load arm is connected to at least one of the first section and the second section; characterised in that at least one portion of the load arm and the second arm are located in the space; and that the elastic member is in a U-shaped configuration having a groove and two closed portions located at two ends of the groove; the groove of the elastic member is formed with at least one oblique raised portion; the groove of the elastic member is connected to the load arm, the closed portions abut against the secondary arm and the shoulder respectively so that the elastic member is located in the space. wherein at least one of the first area and the second area being provided with a load arm and an elastic member connected to the load arm, the elastic member being movable in response to movement of at least one of the first section and the second section for accumulating and releasing energy and for assisting in increasing an elastic force on the grounding mounting rail of at least one of the first section and the second section; wherein at least one of the first area and the second area defines a space, and at least one of the first area and the second area is provided with a shoulder close to the space to define an opening communicating with the space; wherein the load arm is in a T-shaped configuration and has a secondary arm, one end of the load arm is connected to at least one of the first section and the second section; characterised in that at least one portion of the load arm and the second arm are located in the space; and that the elastic member is in a U-shaped configuration having a groove and two closed portions located at two ends of the groove; the groove of the elastic member is formed with at least one oblique raised portion; the groove of the elastic member is connected to the load arm, the closed portions abut against the secondary arm and the shoulder respectively so that the elastic member is located in the space.