Prussian Blue modification of Single Walled Carbon Nanotubes and the successive assembling of paste electrodes is presented in this article for the first time. The electrochemical feature of such electrodes have been fully evaluated with CV and amperometric experiments. Prussian Blue Nanotube Paste electrodes showed a high sensitivity towards hydrogen peroxide with a LOD of 7.4 Â 10 À6 M. They also proved to possess a strong stability even at basic pHs (i.e., pH 9 and 10) demonstrating no significant loss of signal after three days of continuous work. In addition, the loading in the paste mixture of glucose oxidase has brought to a sensitive tool for the detection of glucose in a range between 0.1 and 50 mM.