The SiO2 coated aluminum pigment was prepared by sol-gel reaction using tetraethyl orthosilicate as the silicon source firstly, then the blue aluminum pigment and the red aluminum pigment with metallic luster was prepared respectively by the organic pigment of phthalocyanine blue or azo red precipitated on the surface of SiO2 film, by using BaCl2·2H2O as precipitant. FE-SEM, contact angle and alkali resistance test was used to test the properties of SiO2 coated aluminum pigment and inorganic-organic double-layer coated color aluminum pigment. The results showed that SiO2 formed a uniform and dense hydrophilic coating layer on the surface of aluminum pigment. The contact angle between the organic-inorganic double-layer coating color aluminum pigment and water increased from 23.2 ° to 80 °, and the hydrophobicity increased. In the weak alkaline environment of 40 ℃ and pH = 9, the hydrogen release amount of SiO2 coated aluminum pigment was less than 6 mL and the color aluminum pigment was less than 30 mL within 48 h, and then both of them tended to be stable. The color card comparison and multi angle color difference analyzer result showed that the prepared inorganic-organic double-layer coating color aluminum pigment had obvious color with angle property. The color saturation of red aluminum pigment was higher than that of blue aluminum pigment, and with the increase of phthalocyanine blue raw material, the color saturation of blue aluminum pigment increases, but the effect on brightness is not significant.