2019年(nian)(nian)(nian)(nian)11月,中國郵政宣布將于(yu)2020年(nian)(nian)(nian)(nian)1月5日發行(xing)《庚(geng)子(zi)年(nian)(nian)(nian)(nian)》特種郵票,共1套(tao)兩枚,郵票圖案(an)的命名分(fen)別為“子(zi)鼠開(kai)天(tian)(tian)”、“鼠兆豐年(nian)(nian)(nian)(nian)”。這次統一(yi)延(yan)續了(le)第四輪生(sheng)肖郵票的創作(zuo)理念,使用(yong)了(le)小寫意裝飾畫法。“子(zi)鼠開(kai)天(tian)(tian)”寓意是傳說的“鼠咬天(tian)(tian)開(kai)”,跳(tiao)躍的姿(zi)態也表(biao)達了(le)鼠年(nian)(nian)(nian)(nian)生(sheng)活節(jie)節(jie)高;“鼠兆豐年(nian)(nian)(nian)(nian)”中帶有谷(gu)物元(yuan)素,加上老鼠歡喜的表(biao)情,寓意五谷(gu)豐登(deng)、生(sheng)活美滿。