To provide a large-size refrigerator for business use that can be carried to its installation location, can be assembled easily, can reduce that labor and time required for parts management, and can obtain sufficient airtightness.

This refrigerator for business use is composed of a plurality of unit-like refrigerators 1. Each refrigerator 1 has communicative port sections 3 in at least one side wall 2a of its main body 2. Of the unit-like refrigerators 1 which are connected to each other, at least one refrigerator 1 has a doorway section 4 which is opened and closed by means of a rocking door 5. This refrigerator for business use in which the insides of the refrigerators 1 are made to communicate with each other through the communicative port sections 3 is assembled by airtightly connecting the port sections 3 of the refrigerators 1 to each other.