The invention provides a preparation method of high-quality aluminum-
titanium-
boron alloy rods and belongs to preparation of refiners. The method is characterized by producing aluminum-
titanium-boronalloys through cooperation of a frequency-variable induction electric furnace and a medium-frequency induction electric furnace, refining aluminum liquid before charging, adding a mixture of villiaumite and a
diffusion agent, taking the mixture as a nucleating agent of TiAl3 and TiB2
mass points in the alloying process, wherein the TiAl3 and TiB2
mass points formed after completing alloying are fine and are more uniformly distributed; the formation of rod shape of the TiAl3
mass points and the aggregation of the TiB2 mass points are eliminated; the
diffusion agent is added into the villiaumitemixture, so that the aggregation of the TiAl3 and TiB2 mass points is effectively controlled; the alloying process is equipped with mechanical stirring, so that the enlargement of the TiAl3 and TiB2mass points is effectively prevented; the separation and purification effect of villiaumite
slag and alloys can be improved; through check analysis, the TiAl3 and TiB2 mass points in the produced products are fine, are uniform and dispersive in distribution and are extremely low in
slag content; the problems that the TiAl3 mass points in the continuously cast and rolled aluminum-
titanium-
boron alloy rods in the current market are thick and big, the TiB2 mass points are aggregated, the content of the
slag in the alloys is high, and the aluminum-titanium-
boron alloy rods are poor in refining capacity in the aluminum alloys are effectively solved.