To provide a family home-delivery box used by being buried in an exterior part without impairing the design of the exterior part.

This capacity variable home-delivery box is formed of two box-like housing parts partitioned by a partitioning part 3. The first housing part 1 has a package input door 5, and the second housing part 2 is extended partially communicating with the first housing part so as to have an inverted L-shape with the first housing part. The first housing part 1 and the second housing part 2 are partitioned by the sliding partitioning part 3 so that the first housing part forms the housing space by itself or integrally with the second housing part 2.