The invention relates to a method for preparing palladium carbon by using organic carbon monoxide releasing molecule (CORM). According to the method, the palladium carbon is prepared under the ordinary pressure and the low temperature by taking non-toxic and safe formamide liquid carbon monoxide donor as a carbonylation reducing agent, active carbon material as a carrier and palladium chloride, palladium nitrate or palladium acetate as a Pd precursor. According to the method, the preparation method is simple, and the problems of the conventional palladium carbon catalyst that the metal load rate is low, the catalytic activity is not high and the loss quantity of palladium is large after the palladium is circularly utilized are solved. The obtained catalyst can be used for catalyzing cross coupling reaction between aryl halide and phenylboronic acid, wherein the catalyst still presents a high catalytic activity after being repeatedly used, and the recovery rate of the catalyst is above 90%.