The invention discloses a preparation method of superfine calcium carbonate for printing ink. The preparation method comprises steps as follows: (1) qualified limestone is put into a calcinator, superheated steam at the pressure of 3.6-3.9 Mpa is introduced, the pressure inside the calcinator is reduced to 2.3-3.1 MPa through a regulating valve, and heating is performed to slake the limestone; (2) multistage separation is performed to remove impurity particles in a calcined product, a calcium hydroxide suspension is obtained and diluted to 1.5-4.5 mol/L, ethylenediamine tetraacetic acid taken as a complexing agent and accounting for 1%-5% of the calcium hydroxide suspension is added to the calcium hydroxide suspension; (3) sufficient carbon monoxide is introduced and a crystal forming agent is added till the product is thoroughly carbonized; (4) the product obtained in the step (3) is dehydrated, dried and subjected to surface treatment, and superfine calcium carbonate for the printing ink is obtained. The preparation method has the advantages that the obtained final product has excellent quality, high yield, small influence on environment pollution and better technological effect.