The invention discloses a barium iron zirconate heat storage material, a preparation method and an application thereof. The heat storage material mainly comprises barium zirconate and iron silicate. Zircon sand and rolling iron sheet (iron scale) are taken as raw materials, barite selected from lead zinc tailings is taken as a weight-increasing raw material and control on dosing, chemical constitution, mineral composition, firing temperature and atmosphere is performed, so that a heat exchange material with excellent heat-conducting property, high volume density, high heat storage volume, high softening temperature, compact vitreous surface and excellent anti-erosion property can be prepared. The preparation method for the heat storage material comprises the following steps: 1) controlling raw material selection, chemical constitution, and mineral composition; 2) performing mixture calculation of the heat storage material; 3) preparing and forming a molding blank of the heat storage material; and 4) drying and firing. The heat storage material with high heat conductivity has the advantages of simple preparation method, large heat storage volume, quick heat exchange, high hot air temperature, long service life and low production cost. The industrial residue can be comprehensively utilized and the environment-friendly effect is obvious.