The invention discloses a method for preparing iodized salt from 
iodine-contained absorption solution, which comprises the following operation steps of: reducing a 
free iodine elementary substance in the 
iodine-contained absorption solution into an 
iodide ion with a 
reducing agent, adding an appropriate amount of 
barium carbonate to convert a 
sulfate ion in a 
solution system into 
barium sulfate and adding alkali or salt being capable of reacting with 
hydroiodic acid into a filtrate after 
filtration to obtain required iodized 
salt solution; and obtaining the corresponding iodized salt in concentration and 
crystallization manners. The method has the beneficial effects that the complicated process of preparing the iodized salt by utilizing 
iodine is avoided, the process flow is shortened, and meanwhile, a large quantity of energy sources can be saved; intermediate body 
hydroiodic acid is taken as a 
raw material to prepare the iodized salt by utilizing an iodine 
recovery process, the 
raw material is easily obtained, and obtained mother liquid after concentration and 
crystallization can be directly returned to an iodine 
recovery device, so that the sources are reasonably recycled; and the preparation process of the iodized salt is simple, and products after concentration and 
crystallization have good quality and high product yield.