Abstract: Existing photosynthetic rate measurement system can not be applied to the multi-point and remotely real-time monitoring. To solve such a problem, a remote crop photosynthetic rate measurement system based on ZigBee is proposed in this study. The system consists of two parts, and they are the data acquisition nodes and the data receiving nodes. Data acquisition nodes pass data to the data receiving nodes by a ZigBee network, and then the data receiving nodes complete the data processing and displaying. The ZigBee protocol is chosen to network the different nodes in our measurement system to achieve the remote data monitoring. The experiments of calibrating and validating the sensors are carried out, and the measurement data of the sensors are proved accurate. There exists slight measurement errors between our system and LI-6400. The average errors of carbon dioxide concentration, temperature and humidity are -1.09%, -7.68% and 0.64%, respectively. The errors are in the permitted range, indicating that the sensors perform well in measuring major parameters of crop photosynthetic rate. It is showed that our measurement system can apply to those situations where photosynthetic rate is less than 5 μmol/(s·m2). An approximately linear relationship exists between the measurements of the system and LI-6400 (y=0.8783x+0.3164), which indicates that the patterns of variations of the two measurement systems are comparable. Therefore, the system meets the need for measuring the crop photosynthetic rate. Furthermore, the current system has a number of advantages, such as low power consumption, low running cost, and flexible node expansion.