The work presents the process of designing a plasma reactor with a gliding arc discharge. The topic discussed is motivated by the large and still modern application potential of non-thermal plasma in the processing of gas mixtures and plasmachemical treatment with the afterglow product. The process of designing a completely new plasma reactor with 10 arc-shaped electrodes is described. In the design process, the author relies on experience with existing sliding discharge reactors at the Lublin University of Technology. The design process is carried out using the modern Autodesk Inventor solid modeler environment. Partial elements of the plasma reactor were designed and assembled into an assembly. The whole work is complemented by the presentation of selected, more important physical parameters of these parts. A special part is devoted to presenting a realistic render of reactor body.