The invention relates to a catalyst for synthesizing methyl isobutyl alcohol and isopropanol from acetone, a preparation method and application thereof, in the field of catalysts. The catalyst for synthesizing methyl isobutyl alcohol and isopropanol from acetone includes the following components in parts by weight as a whole: a, 0.5 to 8 parts of at least one from copper or copper oxides; b, 0.5 parts ~10 parts from at least one of cobalt or cobalt oxide; c, 82 to 99 parts of carrier; said carrier is selected from at least one of silicon oxide, aluminum oxide and zirconium oxide modified by high-temperature roasting titanium. In the present invention, the active components copper and cobalt are loaded on the titanium-modified carrier through the ammonia distillation method, the distribution of the metal active component is relatively more uniform, the interaction between the metal active component and the carrier is enhanced, and the activity and stability of the catalyst are improved. And the catalyzer of the present invention adopts the non-precious metal component copper and cobalt of low composition, and cost is low; Not only can produce methyl isobutyl alcohol, also can co-produce isopropanol, industrial production device is stronger to the adaptability of market, enterprise Increased profitability.