Abstract: Sound is such a common part of everyday life and also agricultural mechanization that we rarely distinguish all of its effects many sounds are unpleasant or unwanted, these are called noise since the noise annoys us must be prevented in source, while spreading and at the target. In this study, noise levels of various agricultural machines combined with a tractor measured with a digital sound level meter. The level of annoyance depend not only the level of the noise but also operator`s position and duration. Maximum noise level was measured as 96.6 dBA at surrounding the tractor operator while the minimum noise level was in open air as 67.7 dBA. An increasing of 6 dBA was measured for engine speed changes from 1000 to 2000 rpm.