The invention relates to a distribution box and a production process thereof, and belongs to the field of distribution boxes. The distribution box comprises a box body, a switch assembly, a main circuit breaker and a plurality of branch circuit breakers, wherein first conductive copper rows are arranged between the switch assembly and the main circuit breaker, the number of the first conductive copper rows is two, first supporting legs used for being inserted with wire sockets are arranged at intervals on the first conductive copper rows, a first insulating fixing part is arranged between thetwo layers of the first conductive copper rows, and the periphery of the two layers of the first conductive copper rows is covered with a first anti-shock cover; second conductive copper rows are arranged among the main circuit breaker and the branch circuit breakers, the number of the second conductive copper rows is two, second supporting legs used for being inserted with wire sockets are arranged at intervals on the second conductive copper rows, a second insulating fixing part is arranged between the two layers of the second conductive copper rows, and the periphery of the two layers of the second conductive copper rows is covered with a second anti-shock cover. The distribution box and the production process thereof have the advantages that the wiring process is simple, the circuit issafe and reliable, the distribution box can adapt to different current quantities, later replacement is not needed when new equipment is added in a later stage, and the use is convenient and safe.