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The energy and exergy analytical method was used to analyze the performance of solar-assisted ground source heat pump (GSHP) system installed in a building for soft-shell turtle culture and related Exergy analytical models were developed. The performance of the system was evaluated in terms of the thermodynamic parameters of exergy destruction rate, exergy efficiency and exergetic factor. The results showed that the heat exchanger of surface water had an exergy efficiency of 92.0%, higher than other parts of the system. The exergy destruction of solar collectors, heat pump unit and thermal storage tank was large and exergetic factor reached to 88.1%, which had a higher irreversibility and was the key of system optimization. The coefficient of performance of GSHP unit reached to 2.26.