To provide modified DNA polymerases (e.g., mutants) based on directed evolution experiments designed to select mutations that confer advantageous phenotypes under conditions used in industrial or research applications, e.g., catalyzing incorporation of modified polyphosphate nucleotides, e.g., tagged nucleotides, under high salt concentrations.SOLUTION: There is provided a modified DNA polymerase having DNA polymerase activity comprising an amino acid sequence having at least 95% sequence identity to an amino acid sequence of a parental polymerase represented by a specific sequence, where the amino acid sequence has substitution of T651Y substitution and P542E substitution.SELECTED DRAWING: None