Hydrogen production, vector of energy, by water electrolysis can be economically viable by using electrical energy from renewable sources such as photovoltaic solar energy. In this research was the study of solar hydrogen production using electrolyser based on polymeric exchange membrane electrolysis technology manufactured locally at the Faculty of Technical Engineering in Tartous. The experimental studies were achieved in two different methods: the first, direct coupling to the hydrogen electrolyser with PV module. The second method, designed PV-electrolyzer system consists of the following components: PV module, a maximum power point tracker (MPPT), A DC-DC converter, which is used to operate the system at the maximum power of the PV system at all times and to supply the necessary DC current to the electrolyzer, and tank hydrogen. The results showed that the second method more effective and highly efficient when compared with the first method because of the change in the intensity of solar radiation during the day. Also, results show that some additives such as (KOH) play an important role in enhancing the ionization process of the electrolyte liquid and improve process flow.