The effect of coloured egg by race, dosage and temperatur on the survival rate was studied. The results showed the laser-induced-colored egg rate reaches 55%. This experiment showed that the newly hatched larvae were all female from the eggs of parthenogensis of silkworm by laser Irradiation. Compared with their parents, the offsprings exhited sluggish larva grow-up, the cocoon quality improved and the deformed silkworms were faw in the rearing tests.