A managing method for an application program is disclosed, which includes that: a first terminal converts a file of a specified application program stored by the first terminal per se into an intermediate file in a predetermined intermediate format, wherein the intermediate format can be identified by other terminals having a running environment of the application program (S101); and the first terminal performs backup management on the specified application program by storing the intermediate file into a specified storage location, so as to enable a second terminal to recover the application program that has been made a backup, wherein both the second terminal and the first terminal have the running environment of the application program (S103). A managing device for an application program and a terminal are further disclosed. By means of the solution of the disclosure, performing universal backup management on an application program is realized, such that terminals that need to recover the application program convert a file in the intermediate format into a format required by each terminal, so as to recover and normally use the application program.