An effective crop growth monitoring system comprises a sensor monitoring module, a data transmission module, and a management module. The sensor monitoring module is used for collecting parameter information reflecting crop growth and transmitting collected original data to the management module through the data transmission module. The management module analyzes and processes the received original data, and evaluates the growth of crops. The beneficial effect is as follows: a sensor monitoring module, a data transmission module, and a management module are arranged, and the system has a simple structure and is flexible and convenient; environment parameter information of crop growth is monitored mainly through sensors, and the collected parameters are processed to evaluate the growth environment condition of crops; and when there is abnormality, warning is issued in time so that users can take corresponding measures according to the warning situation.