It is becoming increasingly important for companies to accommodate childcare leave to support childbirth and childcare activities. It is important for them to raise the utilization rate of the maternity and childcare leave mechanisms. On the premise of the use of maternity and childcare leave, production planning and management are realizing that childbirth and childcare are important. We first analyzed female workers’ current situation in the manufacturing industry. Next, we proposed the production system simulation model while considering the production system in relation to maternity and childcare leave, and implemented the simulation while considering this premise. In addition, we proposed the cost evaluation method. To confirm the effectiveness of the proposed method, we carried out a case study that targeted an automobile parts production line.

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