:Based on the self2triggering pulsed time-of-flight laser rangefinding method(STPLR) , the single-self-triggering pulsed laser rangefinding(SSTPLR) technology is proposed systematically in this paper. According to the relationship of self-triggering signals and rangefinding pulses , SSTPLR is divided into two detailed classes : reverse single-elf-triggering and obverse single-self-triggering pulsed laser rangefinding techniques. The rangefinding errors of 0. 96mm and 0. 62mm are obtained in the range of 3m , using the two SSTPLR techniques respectively.