发明了一种钨合金前驱复合粉体的制备方法、钨合金及其制备方法，属于高温结构材料技术领域。发明的钨合金前驱复合粉体的制备方法，包括以下步骤：提供仲钨酸铵、可溶性铁盐、可溶性镍盐和可溶性铝盐的混合分散液；采用草酸调节混合分散液的pH至不大于1.5，反应完全，然后去除溶剂得到混合粉体，即得。本发明的钨合金前驱复合粉体的制备方法，采用草酸对混合分散液的pH进行调整，由于新生成的钨酸、草酸铁、草酸镍和草酸铝是共同反应共同沉淀，提高了混合粉体中各组分的均匀一致性。

The invention discloses a preparation method of tungsten alloy precursor composite powder, a tungsten alloy and a preparation method thereof, belonging to the technical field of high temperature structural materials. The preparation method of the tungsten alloy precursor composite powder comprises the following steps: providing a mixed dispersion of ammonium paratungstate, soluble iron salt, soluble nickel salt and soluble aluminum salt; Adjust the pH of the mixed dispersion with oxalic acid to no more than 1.5, the reaction is complete, and then remove the solvent to obtain the mixed powder. In the preparation method of the tungsten alloy precursor composite powder of the invention, oxalic acid is used to adjust the pH of the mixed dispersion. Since the newly generated tungstic acid, iron oxalate, nickel oxalate and aluminum oxalate react and precipitate together, the uniformity of each component in the mixed powder is improved.