The evaporation capacity in the summer (May to Sep.) from 1986 to 1997 and ice surface evaporation in the winter of 1997 (Oct.to next Apr.),measured by small-sized evaporation gauge,were compared with the measurement by E₆₀₁ at Changchun National Standard climatic station.The conversion coefficient of two Rinds evaporation data was obtained by correlation analysis and contrast.The climate estimated values of E₆₀₁ evaporation for years in succession were obtained.