To provide a structure for connecting a fluid equipment capable of surely sealing a connection part of the fluid equipment while giving a degree of freedom in arrangement of the fluid equipment.

In this structure (X) for connecting a fluid equipment, a first connection part (13A) and a second connection part (13B) are sealed via a sealing member (20) arranged between the first connection part (13A) of a first fluid equipment (7A) and the second connection part (13B) of a second fluid equipment (7B). This structure has a tubular guide member (27) arranged on an outer periphery of a connection part, where the first connection part (13A) is connected with the second connection part (13B), a first fixing member (28) for fixing the guide member (27) to the first fluid equipment (7A), and a second fixing member (29) for fixing the guide member (27) to the second fluid equipment (7B).