The utility model discloses a road ecological landscape sound insulating barrier, including supporting the steelframe, sound absorbing material, the structural slab, rock wool plant substrates, drip irrigation the pipe, the vegetable layer, drainage mechanism, built -in fitting and railing, sound absorbing material fills in supporting the steelframe, the support steelframe passes through the built -in fitting to be fixed on the railing, the structural slab is two, two structural slabs are located the both sides of supporting the steelframe respectively, rock wool plant substrates is two -layer, two -layer rock wool plant substrates is located the outside of two structural slabs respectively, it all lies in rock wool plant substrates to drip irrigation pipe and drainage mechanism, the vegetable layer is located rock wool plant substrates. Compared with the prior art, the utility model discloses the unexistent ecological environmental protection function of traditional sound insulating barrier has, fall like the dust absorption make an uproar, temperature reduction and humidification, absorption tail gas and PM2.5 etc. According to the ability of plant adaptation environment itself, this product has characteristics such as water proofness, heat resistance, ultraviolet resistance, and the plant can grow to such an extent that become better and better along with the time, inhales the defening effect also to strengthen thereupon, has the value of using widely.