NOVELTY - An electro-catalyst comprises active component and carrier, where the electro-catalyst is prepared by mixing palladium and organic solvent to prepare palladium solution. The solution is added with ammonia water to obtain solution-A. Platinum is added with the solvent to prepare platinum solution, which is added with the solution-A. Metal precursor and conductive carrier are added to the obtained solution. The solution is kept in ultrasonic water bath to obtain mixed liquid-B. Metal reducing agent and strong reducing agent are added to the mixed liquid-B. The obtained product is separated.    USE - Electro-catalyst for a proton exchange membrane fuel battery anode.    DETAILED DESCRIPTION - An electro-catalyst comprises 5-70 wt.% of active component and carrier, where the active component is palladium-platinum element or metal and content of palladium in the element is 50-95% and the electro-catalyst is prepared by mixing palladium of soluble precursor of 0.1-1 mg/ml and organic solvent to prepare palladium solution. The solution is added with 37 wt.% of concentrated ammonia water as complexing agent in mol ratio of 1:4-10, and stirred for 2-5 minutes to obtain colorless solution-A. Platinum of soluble precursor of 1-10 mg/ml is added with the solvent to prepare platinum solution, where mass ratio of the palladium and the platinum is 1-19. The platinum solution is added in the solution A and stirred for 2-5 minutes. Auxiliary agent metal precursor is added into the obtained solution and stirred for 2-5 minutes. 100mg of conductive carrier is added in 5-2000 ml of the obtained solution, and stirred for 10-30 minutes. The solution is kept in ultrasonic water bath for 20-60 minutes and dispersed evenly to obtain mixed liquid-B. 5-50 mg of metal reducing agent and strong reducing agent are added to the mixed liquid-B, and stirred for 3-5 hours, where mass concentration of the reducing agent is 5-10mg/ml. The obtained product is settled, washed and separated in a vacuum drying box at 60-100 degrees C for 12-40 hours to obtain electro-catalyst.