这个是福建人的习俗，“扣钱”是一种长长白色长方形的纸张，丢给孤魂野鬼，让他容易走，也会撒进大海，给水鬼。
在一些传统的民俗习惯中，人们会在特定的日子或者重大的节庆活动中往天空乱丢金纸，这种行为被称为“放炮仗”、“放孔明灯”或者“放鞭炮”，主要是为了祈求好运、平安、健康、财富和幸福。放金纸或者放炮仗被认为可以驱走邪恶的灵魂，使恶运远离自己和家人。
Why throw gold paper into the sky?
This is a custom of the Fujian people. “Kouqian” is a long, rectangular paper that is thrown to lone ghosts and wild spirits to make it easy for them to move on. It is also scattered into the sea for water ghosts.
In some traditional customs, people will throw gold paper into the sky on specific days or major festive activities. This behavior is called “fireworks”, “Kongming lanterns” or “firecrackers”, mainly to pray for good luck, safety, health, wealth, and happiness. Throwing gold paper or fireworks is believed to drive away evil spirits and keep bad luck away from oneself and one’s family.
