Sending and receiving "red envelopes" is a long-standing traditional custom in China. The red envelope culture originally originated from a normal interpersonal relationship in China, which embodies the friendly complex of harmonious coexistence. From the past few hundred years to the present, the red envelope is still in this sense in essence. However, giving red envelopes is more universal. First, to give the younger generation a kind of "care", lucky money and birthday wishes all contain the meaning of peace and auspiciousness; The second is the etiquette of "celebrating with joy" in the wedding ceremony, and the expression of mutual wishes when relatives and friends meet and get together for the first time; The other is a reward that comes entirely from inner feelings. In order to repay the hard work of others, red envelopes are given to bridesmaids, Taoist priests, monks and nuns, bearers, drummers, coachmen, etc. They are commonly called "bonuses", but today they are "tips". It should be said that the red envelope culture not only embodies the China people's attention to reciprocity, so as to benefit those who don't forget to pay, but also has an ungrateful mentality.