The invention discloses a fluorine-resisting lead-based composite anode for zinc electrodeposition and a preparation method of the fluorine-resisting lead-based composite anode. An electrochemical deposition method is adopted for depositing a composite film layer CaO-MnO2-PbO2 on the surface of Pb or a Pb alloy. Through introduction of CaO, fluorinions diffused and transmitted to a Pb substrate can be intercepted, corrosion of fluorine to the Pb substrate can be suppressed, and combination of the substrate and the film layer can be improved. Dispersedly-distributed MnO2 can suppress forming ofa MnO2/PbO2-PbSO4/MnO2 structure in the film layer, and the inside stability of the oxidization film layer can be improved. According to the composite anode, fluorine transmitted to a lead substratecan be intercepted, the inside stability of the oxidization film layer can be improved, and the service life of the lead-based composite anode in a fluorine-containing sulfuric acid system can be remarkably prolonged.