Abstract. Dye sensitized solar cell (DSSC) is a kind of device that converts visible light into electrical energy and it has been attractive due to its low fabrication cost and reasonable efficiency. Nano-sized TiO2 powder was obtained by ball-milling for 24 h and it was confirmed by XRD and FeSEM analyses. XRD showed that the anatase phase TiO2 and well-defined TiO2 nano-sized powder with size of about 30 nm was given by FeSEM analysis. Rolling method by using glass rod was used to coat TiO2 film onto FTO coated conductive glass. The natural photosensistizers based on chlorophyll were extracted from the sansevieria trifasciata and bougainvillea leaves. The absorption spectra from UV-Vis spectroscopy indicated the existence of chlorophyll in dye solution. The carbon was used to deposit onto FTO coated glass for counter electrode. The experimental results showed that the DSSCs which were sensitized with chlorophyll based photosensitizer can achieve the reliable photoelectric conversion efficiencies