The invention discloses a variable-track current collector. The variable-track current collector comprises a four-bar linkage mechanism and a current collecting head (5), wherein the four-bar linkage mechanism comprises a base (1), an upper rod (2), a lower rod (3) and a pull rod (4); the current collecting head (5) is arranged at the external extension end of the upper rod (2), the pull rod (4) is an elastic pull rod, the current collecting head (5) is driven by the four-bar linkage mechanism to make a vertical lifting stroke and a lateral movement stroke, in the vertical lifting stroke, the fixed length of the elastic pull rod is maintained, in the lateral movement stroke, the elastic pull rod is telescopic, and a current collecting part of the current collecting head (5) is positioned on the outer side of the elastic pull rod in the lateral movement direction. The current receiving device allows a larger deviation distance of a parking position, a vehicle is convenient to operate, the steady current receiving can also be ensured under the condition that a vehicle body is shaky, and the variable-track current collector also has the advantages of steady structure, small occupied space and the like. The invention further discloses an electric vehicle with the variable-track current collector.