The invention belongs to the technical field of special steel plate preparation, and particularly provides a ferrite-martensitic double-phase hot-rolled pickling plate for wheel spokes and a preparation method thereof, the ferrite-martensitic double-phase hot-rolled pickling plate comprises the following components by weight: 0.05-0.07% of C, 0.40 to 0.60% of Si, 1.20% to 1.50% of Mn, less than orequal to 0.020% of P, less than or equal to 0.010% of S, 0.020%-0.070% of Alt, 0.30% to 0.40% of Cr, 0.10% to 0.20% of Mo, less than or equal to 0.006% of N and balance of Fe and unavoidable impurities. The ferrite-martensitic double-phase hot-rolled pickling plate adopts lower chromium and molybdenum contents, reduces the alloy cost, adopts a lower silicon content, reduces the difficulty of continuous casting production after steel making, improves the heat dissipation capacity and continuous casting ability of molten steel, and is beneficial to industrial mass production. By adopting of a two-stage cooling process, control variables are reduced, the operability and stability of the production are improved, and the coiling temperatureis appropriately increased to (350-400 DEG C). The higher the temperature, the lower the strength of the steel, and the loss of coiling equipment is reduced.