Abstract: In this paper, on the basis of literature [4], the equilibrium solutions were derived from a zero-dimensional model in which the air-sea interaction was considered. Meanwhile, the stability and sensitivity of the model were discussed.The results indicated that there were three equilibrium solutions in the climatic system, two of them were stable and expressed the climate for glacial and interglacial periods. Temperature change was less sensitive in the model.than in other models without considering air-sea interaction. Averagely, when outer parameter varied by 1 %, temperatures would change over a range of about 1K.In addition, the paper showed a different viewpoint about feedback coefficient of stochastic model and demonstrated random analysis. At last, using observational data, we made a test of the stochastic model's suitability.