In selecting the subject matter for each series, the group tries to adhere to some specific guidelines. There are four main areas which serve as sources of stamp subjects. The first of these are themes drawn from the rich cultural heritage of Chinese tradition. Other selections are made in accordance with certain international activities such as the "International Year of the Child", and still another criteria for selection are important current events.
郵票的主題來源有幾種：第一，從傳統文化中擷取靈感，通常每年固定會有四至五套古物、古畫、民俗技藝的郵票；第二，配合國際活動，例如世界通信年、國際兒童年等，也會發行郵票；第三，有關新聞性、時宜性的題材，例如雷射光電展覽、資訊周、女壘邀請賽、棒賽獲冠軍等。