Improved-structure ballistocardiogram signal recorder

The invention provides an improved-structure ballistocardiogram signal recorder which comprises a ballistocardiogram signal acquisition system, a ballistocardiogram signal analysis system and a communication module, wherein the ballistocardiogram signal acquisition system comprises a ballistocardiogram signal collection and conduction device and an extremely-low-frequency micro-vibration signal sensor; the ballistocardiogram signal collection and conduction device can collect the vibration signal induced by ballistocardiogram through a vibration collection panel and transfer the vibration signal to the extremely-low-frequency micro-vibration signal sensor through the ballistocardiogram signal collection and conduction device; the extremely-low-frequency micro-vibration signal sensor converts the vibration signal into an electric signal and transmits the electric signal to the ballistocardiogram signal analysis system; the ballistocardiogram signal analysis system performs operational analysis treatment on the