The invention provides a software compiling method and device. The method comprises the following steps that: a server side distributes a compiling task to one or more clients and locally, wherein the compiling task is a basis for the server side and one or more clients to compile respective source codes; after the source codes which are synchronized to the server side are compiled by the server side, the server side synchronizes an application library to one or more clients, and receives processes transmitted by one or more clients; and the server side finishes software packaging according to the application library and processes. Through adoption of the software compiling method and device, the problem of relatively low compiling efficiency for large software in the prior art is solved, and large software compiling efficiency is increased.