Aiming at diagnosis requirement of laser inertial confinement fusion,an engineering X-ray streak camera was developed for SG-Ⅲ.An X-ray streak camera dynamic testing system was built based on a 130 fs titanium sapphire laser,and the temporal performance of the streak camera was calibrated.The experimental results show that the time jitter of X-ray streak camera is 13.7 ps,the inertial delays of four gears are 26.3 ns,31.5 ns,41.2 ns,68.6 ns respectively,and full screen time is 1.9 ns,3.9 ns,7.9 ns,14.5 ns respectively.The camera′s four temporal range span for an order of magnitude and has an approximate 2-order relationship,which can take account of different ultrafast pulse measurements and contrasts.The camera temporal performance is excellent,and it can meet the requirement of the current laser fusion diagnostic study.