Provided is a sampling method of recycled raw material, the method including: a process (S3) of primarily crushing recycled raw material; a process (S4 to S7) of separating primarily crushed raw material into three components, “scrap iron”, “scrap aluminum”, and “recycled raw material component other than scrap iron and scrap aluminum” and performing primary sample reductions of the three components; a process (S8 to S10) of secondarily crushing “the recycled raw material component other than scrap iron and scrap aluminum”, which is subjected to the primary sample reduction, and performing a secondary sample reduction of “recycled raw material component other than scrap iron and scrap aluminum” which is secondarily crushed; and a mixing process (S12) of mixing “scrap iron” and “scrap aluminum” with “the recycled raw material component other than scrap iron and scrap aluminum” which is subjected to the secondary sample reduction.