The invention relates to an Internet of Things-based community waste recycling biogas digester. The Internet of Things-based community waste recycling biogas digester comprises a digester body, a feeding mechanism, a fertilizer recovering mechanism, a water pressure chamber and a gas releasing mechanism, wherein the gas releasing mechanism comprises a gas releasing pipe, a top cover and a releasing module, the gas releasing module comprises a lifting board, a transmission rod, a support and a gas releasing unit, and the gas releasing unit is composed of a slider, guide rails, an extension spring and a limit block; the digester body is provided with a central control mechanism which comprises a working power module, and the working power module comprises a working power circuit. According to the Internet of Things-based community waste recycling biogas digester, the gas releasing mechanism can achieve automatic gas releasing of the biogas digester for collecting biogas, so that practicality of the biogas digester can be improved; meanwhile, the type of circuit integrated in the working power circuit is uA723, which can keep a stable working state during fluctuations of input voltage, so that the working stability and reliability of the biogas digester can be greatly improved.