Continuous casting mold and the continuous casting method of steel

The present invention provides a continuous casting mold and the continuous casting method of steel. Capable of preventing surface cracks due to uneven cooling of the solidified shell of the initial solidification and the resulting uneven accompanied by peritectic reaction, in the carbon steel from iron toward the γ δ abnormal iron caused by the thickness of the solidified shell surface cracks due to a continuous casting mold. Continuous casting mold (1) according to the present invention compared to the comparison by the meniscus plays an arbitrary position above the meniscus on the inner wall surface of the copper mold the range of up to 20mm above the lower position, each independently having 30% of the diameter of the inner metal thermal conductivity of the thermal conductivity of copper is filled in the circular recess (2) is formed by a plurality of low thermal conductivity of 2 to 20mm metal filled portion (3), and a low thermal conductivity metal filler filling thickness of the metal at the (H) is the depth of the circular recess or less, and low thermal conductivity relative to the diameter (d) of the metal filler satisfies the following formula (I) is, 0.5 ≦ H ≤d ...... (I).