Provided are a solid food, a compression molded body of a food powder, a solid milk, and a compression molded body of a powdered milk which can be produced with improved production efficiency while securing breakage resistance. A solid food is a solid food having a solid form obtained by compression-molding and hardening a food powder, in which a specific surface area voxel ratio of the solid food is configured such that an average value A from a surface of the solid food to a depth of 2 mm is smaller than an average value C from a depth of 4 mm from the surface of the solid food to a depth of 6 mm, and a decrease rate (C - A)/C × 100 of the specific surface area voxel ratio obtained by dividing a difference (C - A) between the average value C and the average value A by the average value C is 9.5% or less.