To obtain an electrostatic charge suppressing conveying device which restrains static electricity from being produced between a substance to be conveyed and a conveying body, and suppresses lowering of yield caused by the static electricity.

An insulator 1 is the conveying body made of glass or PP material and conveyed by a roller 2. The roller 2 is made of iron and charged by an ion generator 3. The charged amount of the roller 2 is obtained by measuring potential of the insulator 1 by a potential monitor 4, and obtained information is fed back to the output of the ion generator 3.