This study has been achieved by General Command of Mapping (HGK) and Directorate of Mineral Research and Exploration (MTA) so as to make the gravity measurements usable for geodetic and geophysical purposes, to determine the standards in gravity reductions, to coordinate the works between institutions, and to submit the resulting gravity anomaly maps to other users. All the measurements, coordinates and quantities that were used in computations are defined in national/international geodetic reference frames to reach the national standards in gravimetric methods. For this aim, data from Turkish National Vertical Control Network (TUDKA), Turkish National Fundamental GPS Network (TUTGA), Turkish Fundamental Gravity Network (TTGA) and the digital terrain model, which have been established and maintained by GCM, were used. The definitions and parameters of Geodetic Reference System 1980 (GRS80) were used in all computations. The equations, parameters and methods applied for the reduction of gravity observations to the geoid surface, which is one of the most important equipotential surfaces of the Earth’s actual gravity potential, were explained and applied in this study.. The gravity anomaly, which is generally defined as the difference between measured actual gravity and computed normal gravity, has various definitions depending on the reduction method. “Free air”, “Bouguer” and “Isostatic” gravity anomaly fields were computed for the Turkish territory. Only the gravity data available for Turkish territory were used in the computations. The gravity anomaly maps and the statistics related to gravity anomaly and its corrections, which were computed by using the existing terrestrial gravity data, were produced in this study. We believe that the gravity data, those other than used in this study and to be collected in the future, must be reduced using the standards and methods given in this study.