The utility model provides an ebullated bed hydrogenation system of high solid content coal tar, this system include ebullated bed hydrogenation ware, high solid content coal tar feeding device, hydrogen feeding device, the online feeding device of catalyst, the online discharge apparatus of catalyst, first pre -heater, second pre -heater, gas - solid separator device, gas -liquid separation and fractional distillation apparatus, the online feeding device of catalyst links to each other with the catalyst inlet of ebullated bed hydrogenation ware, and the online discharge apparatus of catalyst links to each other with the discharge gate of ebullated bed hydrogenation ware, the feed inlet that reaction product outlet passes through gas - solid separator device and gas -liquid separation links to each other, and gas -liquid separation sets up hydrogen export and the export of product oil, and the export of product oil is continuous with fractional distillation apparatus's feed inlet. System and method are used for the catalyst hydrogenation of the coal tar of high solid content to need not to carry on preliminary treatment desorption solid impurity, characteristics such as have that process flow is simple, the flexible operation is easily controlled, conversion rate height and cycle of operation are long.