Cold plasma is an environment full of active ions and energetic particles applied to the surface of the sample to disinfect materials, make their surface hydrophilic and improve their colour. These particles create micropores on the surface of the sample and can be useful in removing moisture and drying sensitive materials. The laurel tree, with the scientific name Nobilis Laurus, is an evergreen plant that has various medicinal properties and is also used in the food industry. In this study, the effect of DBD cold plasma pretreatment on the drying kinetics of bay leaves in a cabinet dryer was investigated. The experiments were conducted using the response surface method based on the Box-Behnken design. The independent variables were temperature (30, 40 and 50 oC), air velocity (1, 2, 3 m/s), plasma treatment time (0, 10, 20 s) and plasma intensity (23, 29 and 35 kV). Dependent variables included drying time to a moisture content of 10% and minimum achievable moisture content. The results showed the significant influence of temperature, air velocity and plasma treatment time on the dependent variables. Increasing the temperature decreased both the drying time and the minimum achievable moisture content. Plasma intensity had no significant effect on minimum accessible moisture and drying time. The results showed a significant effect of plasma treatment time, such that 20 seconds resulted in a reduction in drying time of about 20% compared to treatment without plasma. This can save a considerable amount of energy in the drying process. The two variables temperature and plasma intensity had a significant effect on the brightness and darkness changes of the leaves after drying, so that the use of plasma pre-treatment reduced the colour change of the samples.