The invention relates to a deformation-compensated high-strength metal sheet shear test block, belonging to the technical field of the mechanical property measurement. Two heart-shaped holes, the pinpoints of which are opposite to each other, are formed at the middle part of a flat sheet along the direction of the long axis, the two heart-shaped holes can be respectively offset for a certain distance in the opposite direction along the lateral axis relative to the long axis at the center of the flat sheet, and the flat sheet is notched in the oblique deviation direction from the antisymmetric positions at the far ends of the two heart shapes to the two long sides of the test block, so that only the opposite positions of the tops of the two heart shapes in the center of the flat sheet are connected and the notches of the test block presents an antisymmetric shape. When the long-axis direction of the test block is under the action of a tension, the working area in the center of the sheet is in the shearing stress state because of the special shape of the test block. The invention is applicable to the shear strength test of the high-strength metal sheet which is difficult to be subject to the local surface working, and the local shearing stress state of the flat sheet can be detected by directly using a one-way material testing machine to complete the one-way tension of the test block without being used with complicated fixtures.