The invention discloses a method for preparing an ordered porous TC4 alloy. TiH2 powder and Al-V alloy powder are mixed according to the standard ingredient proportion of the TC4 alloy, a template agent acetone solution is added, and high-energy ball milling is carried out; then vacuum hot pressing sintering is carried out, and finally the ordered porous TC4 alloy is obtained. According to the method, the template agent and the TiH2 powder, multiple ordered holes can be formed in the sintering process, holes in the alloy and the surface of the alloy can be effectively cleaned through hydrogenreleased by TiH2 in the dehydrogenation process, the good performance of the produced product is guaranteed, and the production process of the product is effectively shortened; and the pore morphologyof the titanium alloy is reasonably improved and optimized.