Two low power consumption mechanism, named active transmission of node dynamical package and weighted control transmission of environmental variables, were proposed. A large number of duplicate and redundant data in transmission was reduced. The facilities flower environmental monitoring and its low-power transmission system based on Zigbee was achieved. The multivariable fuzzy control method in facilities flower environment was proposed, which solved the coupling problem in environmental variables and helped greenhouse to reach the comfortable environment of flowers rapidly and keep balance. CC2430 chip was used as the core of the node. SHT10 temperature and humidity sensor, BH1750FVI light sensor, and COZIR carbon dioxide sensor were also used in accordance with the environmental parameters which would affect the growth of flowers, so the nodes could collect and transmit a variety of environmental parameters at the same time, which reduced the cost of hardware. Networking test was carried out in Nanjing Agricultural University. Test results showed that the proposed system reduced energy consumption by 85.97% compared with traditional cycle node (cycle was 1 min), and measurement accuracy was more than 98.5%. The average loss rate of network packet was 0.84%. 