There are many production problems existing during the production of manual filling bar bag granular desiccant, such as high labor intensity, low production efficiency and inaccurate measurement. A new mechanical structure was created and designed to solve these problems. Combining with the requirements and characteristics of bagged granular desiccant filling, the optimized frame structure has automatic feeding, weighing and filling functions. The new automatic particle drying prototype has been built and tested after structural design and electrical control design. The experimental results show that, compared with the traditional filling machine, the production efficiency of the new automatic intelligent dry filling machine has been increased by 4 times and the cost has been reduced by about 2/3. The maximum deviation of the filling measurement is about 0.5 g. The practical production has verified that labor intensity has been greatly reduced, the production efficiency and processing quality of the strip bag desiccant has been effectively improved and also the production cost has been reduced by using the new intelligent dry filling machine.