The invention provides a production method of a barium cleaning iron-chromium-aluminum alloy. The method comprises the following steps: S1, an alloy containing Si, Mn and Cr is proportioned, and the alloy as a smelting raw material is added into a smelting furnace for smelting; S2, vacuum decarburization is conducted in an AOD furnace or a VOD furnace, C is smaller than or equal to 0.05 wt%, and silicon iron is added for pre-deoxidation; S3, smelting is continued to enable Si, Mn and Cr to reach a preset range; S4, an aluminum ingot is added for final deoxidation, sufficient soft blowing is conducted, the content of Al is adjusted in the refining furnace, and the content of Al is controlled to be 5-8.5 wt%; S5, barium alloy is weighed and added into the refining furnace, the weight percentage of Ba is 0.010%-0.5%, and sufficient stirring is conducted; S6, high-calcium refining slag is adopted to adsorb and remove impurities; S7, La is added into the refining furnace for rare earth alloying, and the weight percentage of La is 0.03%-0.15%; and S8, continuous casting, hot continuous rolling, annealing, acid pickling, coping, cold rolling, intermediate annealing, cold rolling, longitudinal shearing, withdrawal and straightening and finished product packaging are conducted, and the product is obtained.