The invention discloses a method for the low-temperature synthesis of zirconium silicate powder through non-hydrolytic sol-gel reaction by using zirconium acetate as a zirconium source. The method comprises the following steps of: by using ethyl orthosilicate and anhydrous zirconium acetate as precursors, LiF or MgF2 as a mineralizer, and chloroalkane or anhydrous lower alcohol as a solvent, mixing the precursors, the mineralizer and the solvent in proportion to prepare precursor mixed solution; feeding the solution into a hydrothermal synthesis reactor to perform the thermal treatment to form a zirconium silicate solid wet gel; and drying, grinding and sintering the zirconium silicate solid wet gel at the temperature of 650 DEG C to obtain the zirconium silicate powder with less powder agglomeration and perfect crystal form growth. The method has the advantages of further reducing the synthesis temperature of zirconium silicate and avoiding the emission of HCl corrosive gas along with simple process and convenient operation.