The invention discloses a novel energy-saving assay furnace. The novel energy-saving assay furnace comprises a furnace body, a furnace mouth arranged on the side wall of the furnace body and a hearth which communicates with the furnace mouth and is arranged in the furnace body. Regularly-arranged turbulent flow blocking modules protruding towards the middle of the hearth are horizontally distributed in the middles of the two sides in the hearth, heating devices are arranged on the two sides of the hearth at the same time, and a refractory lining plate is arranged at the bottom of the hearth. A thermocouple stretching into the hearth is arranged on the side wall of the furnace body. By means of the turbulent flow blocking modules, a good protection function is achieved on heating bars, damage caused by toppling of a crucible to the heating bars is reduced, meanwhile, the heating frequency of the heating bars can be greatly reduced, it is guaranteed that the assay crucible is in a relatively uniform temperature field, and assay result errors caused by environment factors are reduced. By means of the refractory lining plate arranged at the bottom of the hearth, abrasion and corrosion to the bottom of the hearth are reduced, a good protection function is achieved, and the overall service life of the assay furnace is prolonged.