Provided is an update method based on an FUMO protocol. The method includes: a server extending a standard FUMO node, and generating a plurality of FUMO extension nodes in one-to-one correspondence to a plurality of pieces of update package information; the server delivering via the extended standard FUMO node and the FUMO extension nodes the pieces of the update package information to a terminal according to a request message from the terminal, and the terminal downloading an update package selected by a user according to the pieces of the received update package information and updating using the downloaded update package. The solution solves the problem in the related art that only one update package is found in one session in a process of updating based on the FUMO protocol.