In this study 3 samples of bio-composite materials with different proportion of hemp fibres in the PLA matrix were developed, their comparative analysis and certain mechanical properties were investigated. Bio-composite hemp and polylactide (PLA) fibres were evenly blended using carding technology. The obtained blanks were treated for thermosetting at a fixed temperature of 180oC and a pressure of 100 kN, as well as controlled heating, compression and cooling time were applied. The mechanical properties (tensile strength σt, elastic module Et, relative extension ɛt) of composite material were determined.