The invention discloses a multifunctional wireless system for remotely monitoring greenhouse environmental factors in real time by a mobile phone. The multifunctional wireless system comprises a wireless device, a wireless gateway module, a PC (personal computer) and an Android mobile phone, wherein the wireless device comprises a temperature and humidity sensor, an illumination sensor, a soil humidity sensor, a smoke sensor, a human body thermal infrared sensor, a sensor node, a camera, an LCD (liquid crystal display) display screen, a buzzer and a power supply battery pack. Information and images obtained by various sensors respectively realize the data transmission through a CC2530 wireless transmission module and are displayed on the LCD display screen of a sensor node. The sensor gateway part of the device can be connected with a computer through a USB (universal serial bus), the data obtained by the sensor node is processed through the computer, the data can be sent to an Android mobile phone client through the Internet, and users can master the information of temperature and humidity, illumination and the like of greenhouses at any time in any place. The multifunctional wireless system belongs to a device for helping the users to monitor various kinds of information in the greenhouses in real time, the management of the greenhouses becomes more convenient and scientific, and good utilization prospects are realized.