清明節即是節氣又是節日。從節氣上來說，它是24節氣之一。
The Qingming Festival is a Chinese holidays. In solar term, it is one of 24 solar term.
我國20xx多年前的秦漢時期已基本形成了24節氣。24節氣綜合了天文學和氣象學等方面的知識，編排了"春雨驚春清谷天，夏滿芒夏暑相連。秋處露秋寒霜降，冬雪雪冬小大寒"的歌謠。其中清明被排在歌謠的第五位。也是農曆曆法中的第五個節氣。
In China 20xx years ago during the Qin and Han Dynasties has basically formed the 24 solar terms. 24 solar astronomy and meteorology etc. comprehensive knowledge, arranged a "spring cleaning day at spring, summer manwang summer. Autumn dew autumn frost, snow snow winter chill "ballad. The Qingming Festival is ranked in the fifth songs. Is lunar calendar in fifth solar term.
此時，天氣轉暖，大地回春，萬物復甦，一片生機盎然，家家門口插柳條，祭掃墳墓和郊外踏青。農諺中也有"清明忙種粟"的說法。作為以花信為標誌的花信風。清明的花期為一侯桐花，二侯麥花，三侯柳花，充分點明了清明節氣的花期和花種。《歲時百問》說"萬物生長此時，皆清潔而明淨，故謂之清明"。
At this time, the weather gets warmer, Spring returns to the earth, the recovery of all things, a vibrant, every door willow, sweep tombs and in the countryside. Farmer's proverb there is "clear and bright in favor of millet" argument. Huaxinfeng as marked by florescence. The flower is a Hou Aegiceras, Rohmer spent two, three Hou Liu Hua pointed out, full flowering and Flower Festival air. "When the hundred year old question" that "all things are growing at the same time, clean and bright and clean, so that the Qingming festival".