Since the current agricultural image sensor was low resolution and lack of adjustable control function, a high-resolution agricultural image capture node was designed based on ARM, OV hardware platform, and embedded Linux operating system. Both the hardware and software architecture of the image capture node were designed, the node could be controlled easily. It had better control function than traditional image sensor, which had five kinds of white balance control mode, seven levels of brightness, five levels of contrast and five levels of contrast and five levels of saturation effects. It could satisfy the needs to control image acquisition, and provided a convenient remote dynamic application in different scenarios to adjust image capture effects. Experimental results showed that the node could capture the 2 048 pixels×1 536 pixels of image. It also had the advantages of small volume and low cost. This node could be widely used in agricultural image capture, particularly suitable for wireless image sensor networks, crop images and video in real time monitoring.