Disclosed is a solar battery inductor (10). The solar battery inductor (10) comprises: a solar battery panel (11) and a rod part (12). The rod part (12) is fixedly connected to the solar battery panel (11). The rod part (12) is inserted into the soil. First humidity sensors (121) are respectively arranged at different depth positions of the rod part (12). The first humidity sensors (121) are used to collect the soil moisture at different depths. The solar battery panel (11) comprises a power module (111), an infrared sensor (112) and a receiving and sending module (113). The power module (111) is used to absorb solar energy and convert solar energy into electric energy. The infrared sensor (112) is used to collect plant heights. The receiving and sending module (113) is used to send the plant heights and soil moisture to terminal equipment. Solar energy is converted into electric energy by the power module (111) of the solar battery panel (11), and power is continuously supplied to various sensors, which avoids cumbersome processes for charging the various sensors regularly. In addition, the growth status of plants can be determined by changes in the water seepage speed and plant heights, such as changes in the growth rate and water seepage speed of soil with the plant height.Linvention concerne une bobine dinduction de batterie solaire (10). La bobine dinduction de batterie solaire (10) comprend : un panneau de batterie solaire (11) et une partie tige (12). La partie tige (12) est reliée de manière fixe au panneau de batterie solaire (11). La partie tige (12) est insérée dans le sol. Des premiers capteurs dhumidité (121) sont respectivement agencés au niveau de différentes positions de profondeur de la partie tige (12). Les premiers capteurs dhumidité (121) sont utilisés pour recueillir lhumidité du sol à différentes profondeurs. Le panneau de batterie solaire (11) comprend un module de puissance (111), un capteur infrarouge (112) et un module de réception et de tr
