To greatly facilitate the attaching of a backrest to a seat back and to improve safety and appearance.

A slit part 4 is provided in the proper position of the seat back 3 of a backrest 2 for a baby carriage or other vehicles, insertion holes 5 are provided in both upper side ends of the slit 4 and, on the other hand, a net 9 having a net 7 for placing at article and an elastic cord braid 8 for an upper opening part is arranged between attaching wires bent roughly in U shape or upward U shape, both upper side end parts of the attaching wires are bent and inserted into the insertion holes 5 of the seat back 3 and then the attaching wires are pressed into the slit part 4.