With the rapid development of global logistics, it’s necessary for companies to increase the efficiency of their sorting systems. Therefore, the objective of this project is to design an efficient parcel sorting mechanism with lower cost, which is used for sorting medium packages weighing from 50 grams to 5 or 10 kg. The sorting system should be able to sort packages at the rate of 5000 to 30000 parcels per 8 hours. We use tilt tray sorters as the prototype of our design. The whole sorting system consists of two supplying tables, a bin which is connected to one table, a conveyor, a rotation shaft connecting the conveyor and the supplying table, and a piston under the conveyor. When a package is sent to the conveyor, the piston would push the conveyor to a certain angle, in order to let the package slide off the conveyor and fall into the bin. After the package leaves the conveyor, it returns to the initial state and redo the process when another package moves on it.