Smart Green House Automation is a complete system to monitor and control the environment parameters inside a green house .It is necessary to design a control system to monitor various parameters like Temperature, Humidity, Soil moisture, Light Intensity. Here controlling process takes place effectively by both manual and automatic manner. This software uses an Android mobile phone for monitoring as well as controlling green house, connected to a central server which is connected to a microcontroller via serial communication. Microcontroller communicates with the variety of sensor modules.