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Under the conditions of use, transportation, and storage of equipment, the environment has a significant impact on their status and life. In order to achieve continuous and long-term monitoring of environmental parameters for the use, transportation, and storage of equipment, to provide original data for its full-life-cycle health management, an ultra-low power consumption self-timed environmental monitoring module is designed. The system architecture and basic functional units of the environmental monitoring module are given, including storage circuits, main control circuits, timing circuits, sensor circuits and power circuit. Environmental monitoring module realizes the collection of environmental monitoring data such as -40~60℃ temperature, 0~100% humidity, 0.3~1.1bar pressure and -16~+16g vibration, and carries out local data cache. The data collection period can be set flexibly. After collection, the data stored locally is transmitted to the outside through the network interface, the transmission rate can reach 100MB/s. The environmental monitoring module can provide time service through Beidou system and keep time independently with the support of local real-time clock. Peripheral circuits in the module including network ports can realize power-on and power-off operations under the control of the main control circuits. In the low-power mode, the main control circuits can be awakened by timing wake-up and/or external interrupts of the acceleration sensor.