Abstract: A handling method for cell concatenation, includes receiving a cell of a packet before a concatenation timeout period expires and before the total number of received cells of the packet reaches a concatenation number. The method further includes determining whether an end-of-packet cell of the packet is received. If the end-of-packet cell of the packet is received, the received cell of the packet is encapsulated into a first PWE3 packet. The first PWE3 packet is sent to an MPLS network. The present application relieves a limit of the concatenation number or the concatenation timeout period in a cell concatenation process of the packet so as to reduce a delay and a jitter of the packet caused by the cell concatenation.