We have recently installed the Bruker E580 X-band electron spin resonance spectrometer. This EPR spectrometer is equipped with both continous wave(cw) and pulsed function.  For the cw cavity, the highest quality factor for the empty cavity is about 20000, one can detect the at least 1.2*10-9 spins in this cavity. The lock-in detector mode(320 microsec/point to 5 sec/point), rapid scan(10 usec/point) and transient mode (8 ns resolution) is possible for cw measurement.  For the pulsed microwave bridge, the EPR is equipped with a solid state emplifer up to 300W. The pulse length resolutes at 2 ns and lasts at least 4 ns. The dead time of the pulse function is 74 ns for echo measurement (protection pulse covers half echo). A Programmable one axis Goniometer is also available for both pulse and cw measurements. Two distinct cryostats for pulse and cw cavities enable an low temperature environment of liquid helium temperature.