Beam abort signal is a timing signal of the SSRF(Shanghai Synchrotron Radiation Facility) storage ring.It is used to synchronize BPM processor Libera logging beam position data to identify beam abort source and improve the stability of accelerator.The concept design and engineering design of beam abort trigger module are introduced in this paper

and lab test results of this module using RF signal source also presented.Online beam test results show that this module has achieved design goal

could be used to log beam position data before beam abort.