A novel method for the deposition of polypyrrole (PPy) thin films on a metal oxide surface using self-assembled polyethylene glycol (PEG) monolayers as reaction media has been developed. This method lends to increased adhesion of the deposited PPy films to the substrates and an increase in its electrical conductivity. The procedure consists of several simple steps. First, the surface of-lass substrate is functionalized with the isocyanate group. Then, a PEG monolayer is formed on the surface through the reaction of its hydroxy group with the isocyano group. Finally, a polypyrrole film is grown in the self-assembled PEG monolayer by adding oxidant, The resulting PPy thin films were characterized by measuring the electrical conductivity, adhesion, and surface morphology. It was found that the deposited PPy films show higher conductivities (13 s/cm) and superior adhesion compared to simply deposited PPy films.