The invention relates to a solar chemically recuperated gas turbine system and a method implemented by the same.The method includes compressing air, heating the compressed air in a solar air heat collector and then feeding the compressed air into a combustion chamber; heating and evaporating fed water by the aid of a waste heat steam generator, mixing water vapor with fuel to obtain mixtures, feeding the mixtures in a tail gas reformer, reforming a part of the fuel and the water vapor by the tail gas reformer by the aid of heat of tail gas to obtain synthesis gas mixtures, feeding the synthesis gas mixtures into a solar reformer, further reforming the synthesis gas mixtures to obtain synthesis gas, feeding the synthesis gas into the combustion chamber, mixing the synthesis gas and the heated compressed air with each other, combusting the synthesis gas and the compressed air to generate high-temperature gas and feeding the high-temperature gas into a gas turbine to apply work; feeding tail gas exhausted from the gas turbine into the corresponding reformer to provide heat for reforming reaction, and feeding the tail gas into the waste heat steam generator to provide necessary heat for evaporating the fed water.The solar chemically recuperated gas turbine system and the method have the advantages that the waste heat of the tail gas is sufficiently utilized by a solar chemically recuperated gas turbine, and accordingly the efficiency of the solar chemically recuperated gas turbine system can be improved; solar energy is led into the solar chemically recuperated gas turbine system by the solar air heat collector and the solar reformer, accordingly, consumption of the fuel can be reduced to a great extent, and environmental and economic benefits of the solar chemically recuperated gas turbine system can be increased.