Amperometric analysis systems with two or three require a potential of reference electrode stable in function of time. In this work we developed an Ag/AgCl pseudo-reference onto gold film on silicon substrate. The amperometric electrodeposition method utilized (constant potential) provided a uniform deposited film and a controlled process characterization. It allows us to obtain electrodes with excellent performance during fourteen consecutives day. The characterization in function of the chloride concentration and time were also presented.