A display unit attaching structure includes: a plurality of first rhombic clips 7 for engaging with engaging holes 51 of a vehicle roof sheet metal 5; a base sheet metal 2 on one side of which an engaging section 22 is formed, and on the other side of which a supporting section 24 with an engaging hole 23 is formed; and a display main body 3 in which the display is pivotally supported openably and closably in a housing section of a display 4, on one side of which an engaging section 34 for engaging with the engaging section 22 of the base sheet metal 2 is provided, and on the other side of which a second rhombic clip 9 for engaging with the engaging hole 23 is provided.