To provide such a strap for portable equipment with fall-preventive function that its suability remains the same as that of conventional straps for portable equipment, when the fall-preventive measure is unnecessary and the measure is easily taken, when it is necessary.

A slide part 11 passes through a strap main body 13, and by the resistance of the strap main body and the slide part, it is easily moved with a hand but is not moved by a load for hanging object portable equipment. Then, in the case that the falling prevention countermeasure is required, the position of the slide part is adjusted to be matched with a clothes shape, and the portable equipment and clothes are connected to each other with a fastener part 12.