The present invention provides a recovery method in which the indium
sponge that is deposited by substitution in the substitution deposition
step in the recovery of indium from an indium-containing material is
produced in the form of a powder rather than in a bulky form. This
recovery method is a method in which an indium sponge is deposited by
substitution by adding a substance containing chlorine, and further
adding a reducing agent, to an indium-containing solution whose pH has
been adjusted to a value in the range of 1 to 2.2.