Regulations Governing Enrollment in Postal Simple Life Insurance Policies Article 20

In the event of the insured’s death, the beneficiary shall fill out a claim form and submit it to the insurance handling branch along with the policy, the death certificate or autopsy report and household register with the deceased’s name crossed off.
中文原文 郵政簡易人壽保險投保規則第20條
被保險人死亡時,受益人應即填具保險金申請書,連同保險單、死亡證明書或相驗屍體證明書及除戶戶籍謄本,一併交付經辦郵局申請保險給付。

English translation for reference only; the Chinese text prevails. Not legal advice.