[Aim]  Palembus dermestoides is an insect with great potential for use as both medicine and food. However, it is currently underutilized due to low, modest-scale production with limited outputs. This study aims to determine the optimal fruit and vegetable supplementation regime for P. dermestoides and enhance its reproductive capacity. [Methods]  P. dermestoides were fed 7 different fruit and vegetable supplements (orange peel, cantaloupe, apple, cabbage, carrot, pumpkin, and pear) for one entire life cycle. Adult laying quantity, larval development quantity, and pupal quantity were measured to determine the growth and development of P. mestoides at different developmental stages and the overall life cycle breeding rate. [Results]  Compared to the CK1 control group (no supplemental feeding), P. dermestoides fed cantaloupe, apple, carrot, CK2 treatments（Feeding cabbage） had a shorter female pre-oviposition period, an extended oviposition period, and an increase in the quantity of eggs laid. The cantaloupe treatment group had the shortest pre-oviposition period [(5.33 ±0.33) d], but the longest oviposition period [(133.00±4.04) d]. The pre-oviposition period and oviposition period were 3.34 d shorter and 24 d longer, respectively, compared to the CK1. The cantaloupe treatment group had the highest single female laying quantity, with (231.98±15.19) grains, compared to the apple treatment group which laid 74.00 grains. Larvae fed with apples exhibited the largest total weight gain within 20 days (20 individuals), reaching (103.34±19.85) mg. Additionally, the apple treatment group had the highest effective pupation rate and effective eclosion rate, reaching 88.89%±2.94% and 83.33%±1.93%, respectively, followed by the cantaloupe treatment group. The overall life cycle breeding rates for the apple and cantaloupe groups were significantly higher than the other groups with rates of 54.64%±0.92% and 52.05%±1.98%, respectively. The overall life cycle breeding rates for the pumpkin and carrot treatment groups were 41.54%±1.27% and 37.42%±2.67%, respectively（P<0.05）. The overall life cycle breeding rate of the orange peel treatment was the lowest at 16.27%±1.94%. [Conclusion]  The results of this study indicate that cantaloupe and apple are the most effective supplements during the adult and larval stages, respectively. Feed with the best fruits and vegetables for each insect stage, a single pair of P. dermestoides can lay (305.8±10.82) eggs, hatch (259.05±13.69) larvae, and ultimately produce (170.32±20.19) high-quality adults.