The invention discloses a method for preparing electronic conductive micro-spheres for producing an 
anisotropic conductive film by simply absorbing 
metal palladium ions. The method comprises the following steps of step I, preparing 
polymer seed balls; step II, preparing 
seed ball dispersion liquid; step III, preparing 
emulsion; step IV, adding the 
emulsion into the 
seed ball dispersion liquid for swelling to obtain a swelling solution; step V, performing 
polymerization, centrifuging, cleaning and 
vacuum drying on the swelling solution, water and surfactant to obtain monodisperse cross-linked 
polymer micro-spheres; step VI, dispersing the cross-linked 
polymer micro-spheres in strong 
oxidizing acid containing 
palladium chloride, wherein the concentration of the strong 
oxidizing acid is 0.1-3g / L; performing ultrasonic mixing, centrifuging and washing until the PH value is neutral, and adding a 
reducing agent for reducing to obtain polymer micro-spheres with high-catalytic-activity 
palladium; step VII, adding the polymer micro-spheres into 
electroless plating solution for plating. Compared with the traditional 
adsorption method for 
colloid palladium, the method disclosed by the invention has the advantages of fewer steps, high adsorption capacity, good effect and uneasiness for analyzing; the intrusion of 
tin ions is reduced, and the risk that activating and sensitizing liquid is easy to deteriorate is eliminated.