With the development of the integration of seismic exploration software in the acquisition, processing, explaining, builds cloud computing platform of a cross-hardware, operating system that becomes necessary; and in cloud computing platforms, the common thread library becomes the key to the development of a large amount of computation algorithm of seismic software. In the paper, the analysis of the threading model and synchronization mechanisms, sorting out the property of the thread, thread control, thread flow and synchronization properties and operation; finally, on the basis of these common components, to package a variety of local thread library, so that implement cross-platform common thread library on basis of any native threads library.