To provide a truck facilitating mounting work of a container to be weighed to a platform scale and capable of using an optional platform scale as a platform scale.

The container 30 to be weighed on the truck 10 is mounted to a truck mounting base 4 and conveyed. The truck 10 has a larger outside diameter than the height of a weighing base 21 of the platform scale 20, and is provided with truck wheels 5, etc having a wheel distance capable of striding over the platform scale 20, and bolts 6, etc. for floating the truck mounting base 4 and the truck wheels 5, etc. by extending a support leg to the weighing base 21 of the platform scale 20 when striding over the weighing base 21 of the platform scale 20.