The invention relates a honeycomb-simulated concrete block and a die bar for production of the honeycomb-simulated concrete block, and aims at solving the problems of complex heat preservation construction of wall body of the existing building and high cost. The honeycomb-simulated concrete block is characterized in that a honeycomb-shaped cavity being 9 to 300mm in diameter and 0.5 to 100mm in wall thickness is formed in the block; one end of each honeycomb-shaped cavity is opened and while the other end of each honeycomb-shaped cavity is closed; the closed end is 0.5 to 30mm in layer thickness; the cavities covers 50 to 75% of the size of the block and the volume weight of the cavities is 550 to 800kg. A die bar for producing the honeycomb-simulated concrete block is characterized in that a cavity is formed in a die bar column; a breathing hole is formed in the die bar column; a grid sleeve sleeves the die bar column; a sponge sleeve sleeves the grid sleeve; a rubber sleeve sleeves the sponge sleeve; a closed bar bag is formed between the rubber sleeve and the die bar column. The block meets the requirement on self-heat-preservation and noise insulation of a wall body can be met; the construction links are decreased; the diameter and length of the bar bag can be changed; the die bars can form dies of different specifications; therefore, the honeycomb-shaped concrete block of different specifications can be manufactured.