Plant growth status monitoring is an important link in the process of plant cultivation. The traditional monitoring methods mainly rely on human labor. This paper focuses on the use of soil moisture sensors and light sensors to detect the plant growth status, and studies the way that can view the plant growth information in real time through the mobile phone program to achieve the purpose of intelligent detection. Considering the characteristics of convenient network transmission and large-capacity multi-channel, ESP32 is used as the main board for development, and a multi-sensor fusion perception device based on ESP32 is designed, which integrates the functions of data detection, storage, and transmission. At the same time, based on the Tencent Cloud IoT resource explorer platform, a set of programs for receiving sensor information is developed with a completed the panel design. Therefore, the purpose of data exchange between the microcontroller and Tencent Cloud is achieved, which makes it possible to display various plant growth status information on the mobile phone in real time, saving a lot of labor costs.