All-solid-state pulsed lasers play an important role in medical， military， industrial and scientific research fields for its high energy and short pulses. Passive Q-switching and mode-locking are the two most effective techniques for generating all-solid-state pulsed lasers. Among them， the saturable absorber is the key device that has a great influence on the laser output parameters. In recent years， novel low-dimensional material saturable absorbers represented by carbon nanotubes， graphene， and black phosphorus have been widely studied due to their convenient preparation process， low fabrication cost and wide optical response bandwidth. The research progress of some novel saturable absorber materials such as novel transition metal dichalcogenides， ternary chalcogenides， MXenes， single-element alkenes and low-dimensional nanostructures is reviewed in all-solid-state pulsed laser modulation. The future development of novel low-dimensional material saturable absorbers is also prospected.