The purpose of this study is to fabricate DSSC which performs well from natural pigments by giving exposure to microwave irradiation in materials to increase pigment uptake. In this research, the microwave irradiation was applied in coating banana flower extract (Musa acuminata bract) on the electrode, to increase light absorption of anthocyanin pigment. It is expected that the device can absorb more solar energy. The banana flower extract was characterized using Ocean Optic Vis-Nir USB 4000 to observe the optical properties. The irradiation treatment was carried out using Electrolux Microwave (EMM 2308X) at power 150 W. The DSSC samples were characterized using I-V meter Nacrieble 101. The maximum absorbance of 1.55 a.u. is found for the mass fraction of 0.45. The microwave irradiated device has an efficiency of about 3.69x10(-6)%, whereas which is no microwave irradiation has a maximum efficiency of about 0.57%. It shows that microwave irradiation can improve DSSC performance. The banana flower extract is available as an alternative organic photosensitizer in the fabrication of DSSC.