陈氏春秋大刀，亦名“青龙偃月刀”是陈氏太极器械套路中长兵器的一种。此套路布局合理，上呼下应，左右逢源，宽的劈、砍、撩、挂、斩、抹、截、挑、刺等以及舞花等刀法，交待得清清楚楚，干净利落。确有“大刀如猛虎”的风格。一招一势有威武凛烈的气概。

Spring and Autumn Falchion of Chen Family is also called Black Dragon and The Moon Falchion. It belongs to one kind of the weapons in Chen-style Taiji. This set of weapon has logical and reasonable structure and the forms echo with each other. The forms are agile and flexible in practise. It is very clear in the techniques of hack, cut, uppercut, hang, chop, slice, raise and stab. It has the feature of "the falchion is as fierce as the tiger". Every posture and form is characterized of being powerful and forceful.