Koi fish's possession of Pinduo is a visual statement, which is used to describe the situation of actively participating in activities and sharing to get good luck on Pinduo platform. Possession of Pinduo koi fish can vividly express the activities and sharing on Pinduo platform, thus getting good luck and rewards. On the Pinduoduo platform, there are many activities and benefits to participate in, such as signing in for red envelopes, bargaining for free, inviting friends to earn commissions and so on.