提出了可变频时钟写入方法和锁相环倍频时钟写入方法，给出了这两种写入法的读／写电路，并分析了其性能。结果证明，可变频时钟写入方法电路简单，刻写时钟周期短；锁相环倍频时钟写入过程较前者长，但其频率范围容易调整。两者均适合高密度小型温盘的时钟录写。 The write method of frequency-variable clock and the clock-write method of PLL frequency-doubling clock are proposed. The read / write circuits of these two kinds of write methods are given and their performance is analyzed. The result shows that the circuit of the variable frequency clock writing method is simple and the writing clock cycle is short. The phase-locked loop clock writing process is longer than the former, but its frequency range is easy to adjust. Both are suitable for high-density small temperature disk clock writing.