This paper analyses the heat-absorbing and the heat-emitting of greenhouse solar heat storage pool in cold area.The analysis shows that: the greenhouse solar heat storage pool can be used for solar energy collected and stored and the energy can be effective used for heating the greenhouse at night.This paper uses the daily-monthly average parameters of cold area to analyze and calculate and the results show that: March to October in cold area save energy effectively,especially,June to August save energy 100%,April saves about 60%,May saves more than...