Abstract: At present, the reeds in Jiangsu and other southern regions mainly rely on artificial harvesting, and the degree of mechanization is not high and the efficiency is low. According to the characteristics of Southern reed, this paper designs a special clamping and conveying device for crawler self-propelled reed harvester, analyzes its key working parts such as clamping and pulling chain, clamping and conveying chain and driving device, completes the three-dimensional assembly of the whole clamping and conveying device, and realizes the low loss and high-efficiency conveying of cutting reed from the front header to the rear bundling device. In order to determine the best working parameter combination of the device, the processing trial and bench test were carried out. The test results show that the clamping conveying clearance is 15 mm, the clamping conveying speed is 1 m/s, and the clamping conveying angle is 25 °.The effect is the best.