Continuous casting method for steel

Provided is a continuous casting method for steel capable of effectively reducing center segregation occurring in a cast sheet. A continuous casting method for steel is characterized in that when a range from a starting point to an ending point is defined as a first section in a casting piece drawing direction in a continuous casting machine, the casting piece is cooled in a range in which the water density per unit surface area of the casting piece is 50-2000 L/(m < 2 > * min) or less in the first section, and the water density per unit surface area of the casting piece is 50-2000 L/(m < 2 > * min). The starting point is the starting point at which the average value of the solid fraction in the thickness direction at the final solidification part in the width direction of the cast sheet is 0.8 or less, and the end point is the end point at which the average value of the solid fraction in the thickness direction at the final solidification part in the width direction of the cast sheet is greater than the soli