A remote real-time acquisition system for rice plant hopper images in the fields has been designed and developed. The whole system consists of the image acquisition device, the automatic control system and the remote transmission system. Under the condition of night, rice plant hoppers will be attracted to the white cotton curtain based on the phototaxis of wild insects. The image acquisition device scanned the curtain screen line by line and took photos of the plant hoppers on the screen under the control of the PLC. The remote transmission system is set up with 4G technology and the method of network transmission based on the model TCP client/server, which can transmit the images taken in the wild fields to local lab for subsequent analysis. According to the result of the experiment taken in the wild field environment, the images of the rice plant hoppers can be obtained directly with the pixel of 768×576. There are obvious differences between these pictures and the images of other insects through the verification of two-dimensional discrete Fourier transform, which means the system meets the requirements of image acquisition.