To control a mark edge position with high accuracy in a high-density optical disk.

In an optical disk recording method using a so-called n/2 recording strategy where when n is an integer equal to or greater than 2 and a quotient is q when n is divided by 2, pulse sequences corresponding to marks of length nT are constituted by q units of write power level pulses, the starting time, the ending time or the duration of each pulse in pulse sequences corresponding to marks where n is equal to or greater than 4 is controlled separately for at least the case of being n=4, the case in which n is an even number equal to or greater than 6, and the case in which n is an odd number equal to or greater than 5.