In order to quickly grasp the time and space distribution characteristics of the main environmental parameters in the pig house, a wireless multipoint and multisource remote monitoring system for the pig house environment was designed. The ZigBee mesh topology was used for wireless distributed networking, and the node devices achieved multipoint monitoring in the form of “one master, multiple slaves”. The slave node was designed with STM32 embedded control chip as the core, and equipped with various sensors such as temperature, relative humidity, ammonia concentration and carbon dioxide concentration, etc. Each slave node uploaded the data collected in real time to the server through the master node, and finally implement the function of remote monitoring of the system on the webpage. The system was tested on a largescale breeding farm in Guangdong Province. The spatial and temporal distribution characteristics of various environmental parameters in the farrowing pig house were summarized and analyzed. The results showed that temperature and humidity changes in each area of the farrowing pig house showed a negative correlation, and the relative humidity was high. The difference between changes in ammonia concentration and carbon dioxide concentration in the house was extremely significant (P<0.01). The system was stable in operation, the lithium battery can work continuously for 170h, and the average packet loss rate was 2.39%. The monitoring of each environment parameter was accurate and reliable, and the regional difference was significant. The system was beneficial to quickly perceive the distribution characteristics of pig house environment and provide reference for the optimization of pig house environment control.