To provide a method for producing lead sulfate where, from powder comprising lead, copper and tin such as dross generated in a lead refining stage, lead is recovered at a high recovery rate, so as to produce lead sulfate.

While blowing oxygen or air into a nitric acid aqueous solution, powder comprising lead, copper and tin in metal form is added thereto, its pH is held to the range of 0.7 to 4.0, preferably of 1.5 to 3.5, temperature is held to 10 to 100C, preferably to 50C, oxidative leaching is performed, thereafter, it is subjected to solid-liquid separation, so as to be separated into a leaching residue comprising copper and tin and a leachate comprising lead, sulfuric acid is added to the leachate, so as to generate lead sulfate and to regenerate a nitric acid aqueous solution, subsequently, it is subjected to solid-liquid separation, the generated lead sulfate and the regenerated nitric acid aqueous solution are separated and recovered, and the regenerated nitric acid aqueous solution is used for leaching.