The utility model relates to a grating-steel-frame concrete lining structure for a tunnel. During tunnel construction, when a stratum with larger ground stress or a broken fault zone is encountered, the primary support of the tunnel can deform to different degrees to cause cracking of the primary support. The grating-steel-frame concrete lining structure comprises an outer-layer arch wall primary support, an inverted arch primary support, an inner-layer secondary lining and an inverted arch, wherein a plurality of arch wall grating steel frames are arranged on the inner and outer edges of the inner-layer secondary lining at certain intervals and in a staggered manner; a plurality of inverted arch grating steel frames are arranged on the inner and outer edges of the inverted arch at certain intervals and in a staggered manner; the arch wall grating steel frames and the inverted arch grating steel frames are erected by assembling prefabricated separated plates, are shaped like grating, and are respectively positioned in the inner-layer secondary lining and the inverted arch. According to the grating-steel-frame concrete lining structure, the grating steel frames are adopted to replace lining steel bars; the finished grating steel frames are formed by machining outside the tunnel and then are transported into the tunnel to be assembled directly; therefore, the mounting time is reduced, the completion time of construction of the secondary lining concrete is brought forward, the construction progress is accelerated, construction security risks are reduced, and the construction efficiency is increased.