Abstract: Abstract: At present, the energy consumption has become a problem which cannot be ignored in the design of belt conveyor. Indentation rolling resistance and Idler rotational resistance has become the biggest influence on the running resistance of belt conveyor. Therefore, it is necessary to carry out research on the indentation rolling resistance and idler rotational resistance. Because belt speed is an important operation parameter, the study on the influence of the belt speed on the indentation rolling resistance and idler rotational resistance is meaningful. Since the majority of research , especially the research of indentation rolling resistance, are based on the theory and software simulation. Therefore, Author firstly designs a set of experimental device which can measure the value of both indentation rolling resistance and idler rotational resistance, subsequently, the research on the relationship between belt speed and indentation rolling resistance with idler rotational resistance can be carried out with the help of frequency transformer

Key words: Key words: belt speed, indentation rolling resistance of idler, idler rotational resistance, experimental device, experimental investigation.