The invention provides a manufacturing method of a material tensile sample. The method comprises steps that: A, according to the dimension of a standard tensile sample, a punching die of a punching machine is manufactured, wherein the gauge length section width of the punching die is larger than that of the standard tensile sample; B, according to the quality and the thickness of a material requiring punching, a punching machine with a corresponding tonnage is selected; with the punching by using the punching machine and the punching die, a crude sample is obtained; C, the crude sample obtained through punching is subject to finish machining in a numerical control milling machine, such that a standard sample is obtained. The method provided by the invention is advantaged in that: with the method, a thin material standard sample for mechanical property testing can be manufactured with high speed and high efficiency; with the method, numerical control milling machine processing of a plurality of thin materials can be simultaneously carried out, such that processing speed is improved; with the method, the precision of the obtained standard sample is high, and the accuracy of testing results can be ensured.