The utility model relates to a process optimization test platform for a quartz crystal device. The process optimization test platform comprises a computer, a signal generator connected with the computer, a Pi network and a first peak detector which are connected with the frequency signal output end of the signal generator, a second peak detector connected with the frequency signal output end of the Pi network and an A/D (analog/digital) converter connected with the output ends of the first peak detector and the second peak detector, wherein the computer controls a frequency and an amplitude value of the output signal of the signal generator through an interface circuit; the output signal of the signal generator excites the Pi network; the peak detection circuits are used for converting a peak of an alternating current voltage signal at two ends of the Pi network into direct current signal which is in a certain proportion with the peak of the alternating current voltage signal; and the A/D converter converts the direct current signal into a digital signal and sends the digital signal to the computer through the interface circuit.