When the charge transfer capacitance measuring circuit works all the year round

there will be a quite considerable temperature drift in its output.The temperature is sampled with thermistors

the regularity of output voltage of capacitance measuring circuit changing with temperature from experiments is found

and then the temperature of the circuit is compensated with the micro-controller techniques.The temperature drift to 20 % of the original can be reduced.A new compensation method doesn’t come the influence of measuring circuit adjustment of zero position and gain.