In order to study the correction method of instrument coefficient of turbine flowmeter that works in aviation lubricating oil with variable temperature, four turbine flowmeters are calibrated at different temperature points using the flow standard facility which works with aviation lubricating oil and the temperature can be regulated. The calibration results are corrected by fitting with double exponential decay function. The results show that the error of the meter coefficient after corrected at each temperature and flow rate is less than 1% ., and the correction method is universal.