Abstract: In order to study the influences of different processing conditions in loosening and conditioning equipment on the processing quality of tobacco strips, wireless temperature and humidity monitoring technology and image processing tool, Imagepro plus, were used to analyze the stretching rate and processing property of strips under different process parameters, control modes and energy supply means. The results showed that:1) The rise of recirculated air temperature increased the processing strength of loosening and conditioning cylinder to the processed strips, which was beneficial to raising the stretching rate of strips. 2) The physical properties of strips peaked at the processing vapor coefficient of 2.1. 3) Under fresh air low-temperature control mode, the processed strips had the highest stretching rate and presented better processing effect. 4)The increase of vapor proportion in the hot air duct combined with the decrease of direct vapor injection were beneficial to the rapid rise of strip temperature and the promotion of stretching rate and sensory quality of strips.