The invention discloses an energy collection device based on piezoelectric power generation and a control system and a control method thereof. The energy collection device comprises a power generation device, an energy conversion module, and a storage device. The power generation device comprises a cover plate, an impact block, fixed columns, a piezoelectric dual-chip array, a base plate, and a wire. The energy conversion module is connected with the storage device through a doubling rectifier circuit. The storage device is connected in parallel with a voltage regulator diode through a super capacitor. The invention provides an efficient energy collection device, and automatic energy collection is realized through a control system.