Cargo sorting system and method

Disclosed are a cargo sorting system and method. The system comprises: a control server (101) configured to determine a delivery port according to a route of an item of cargo to be delivered, allocate a delivery robot (102) and plan a travel path for the delivery robot (102), and generate a delivery instruction and send same to the delivery robot (102); the delivery robot (102), which is configured to travel to the delivery port and deliver said item of cargo to the delivery port, wherein the control server (101) is further configured, when the number of items of cargo collected by a target cargo collection container below the delivery port is greater than or equal to a predetermined threshold, to allocate a first transfer robot (103) and plan a travel path for the first transfer robot (103), and generate a transfer instruction and send same to the first transfer robot (103); and the first transfer robot (103), which is configured to travel to the target cargo collection container according to the planned travel path and transfer the target cargo collection container to a cargo collection station. Further disclosed are a server and a storage medium.