Abstract: This paper gives an integrated prediction model of point in seepage field and its reliability analysis,which is established on the analysis of frequency-wave,relativity and probability.Two methods for determing the significance of the mean deviation in two samples and the significance of the mean square deviation of several samples,are applied to give a scientific judgement and objective index for reliability and sensitivity of the observation equipment, reliability and precision of the observation data,geo-deformation due to seepage force in the seepage region.The prediction model given in this paper is a dynamic model which not only predicts mean and range of seepage parameters under some conditions,but also gives reliability and significance of the prediction value and the deviation of the prediction model