An optical information recording method of recording information on an
optical information recording medium by irradiation of laser beam, the
method comprises the steps of: forming a recording waveform which forms a
first pit having a shortest pit length, by using a top pulse having a
width narrower than a width of a channel clock cycle; forming a recording
waveform which forms a second pit that is second shortest following the
first pit, by using the top pulse and a terminal pulse having a width
narrower than the width of the channel clock cycle; and forming a
recording waveform which forms a pit that is longer than the second pit,
by using the top pulse, the terminal pulse, and at least one multipulse
formed between the top pulse and the terminal pulse. According to the
method described above, pits having stable shape can be formed and thus
jitter of reproduced signals can be reduced in an optical information
recording medium having a narrow track pitch and high recording density.