Abstract: The article analysis and calculate uncertainty of 10μF~1mF high capacitance’s measurement results by series capacitor method which standard are high accuracy bridge AH2700A and standard capacitor Agilent 16380C（1??F）.Via uncertainty analysis, measurement uncertainty of capacitor of 10??F is 0.02%,measurement uncertainty of capacitor of 100??F is 0.1%, the measurement uncertainty of capacitor of 1mF is 0.6%.

Key words: Series capacitor method, High capacitance standard, Uncertainty analysis