Dry seeds of cultivated soybean "Maneangjin" and "Fengshou 11" were treated with N2, Nd glass and He-Ne lasers. In the M1 generation, some of the plants showed signifcant morphological and physiological damage, and chromosome aberration was observed in root tips mitosis and PMC8 meiosis from seeds treated with N2 and Nd glass lasers. In the M2 generation, stable dwarf mutants were produced from seeds treated with Nd glass and He-Ne lasers. Dwarf mutants showed erect habit, increased number of poods and seeds/plant compared with a control.