自哈布瓦赫提出“集体记忆”理论后，历史学、社会学、新闻传播学等学科的学者均开始将“记忆”引入本学科进行研究。随着社会的变迁、新媒介技术的诞生， 学者们对记忆的研究更加深入，集体记忆理论得到了进一步发展。社会记忆、文化 记忆等理论被提出，记忆微光、记忆连结转向、全球性记忆场域等新媒介环境下的记忆研究思路也开始被提出和尝试。本研究主要聚焦于新媒体环境下，人们开展记忆实践的形态、集体记忆被建构和形成机制的变化。全球知名学者袁隆平逝世后，在新媒体平台上出现了记忆实践的热潮，这一“记忆热”折射出了新媒体环境下的记忆机制变迁。因此，本文将“新媒介环境下的集体记忆建构”作为核心议题，以袁隆平逝世后微博平台上的记忆实践为案例展开研究。本研究首先梳理了各记忆理论的内容和发展关系，然后以宏观的集体记忆研究为理论基础，运用文本分析的方法对使用爬虫软件爬取的 2021 年 5 月 22 日至 11 月 16 日微博平台上的袁隆平记忆相关内容进行研究。通过对 6130 条相关内容的分析，本研究描绘出了袁隆平记忆图景。然后，本文通过对各记忆议题提出的先后顺序、各记忆主体参与实践的状况分析探讨了新媒体环境下记忆如何交流与博弈的问题。最后，本文在效用、文化、技术层面对新媒体环境下呈现出如此记忆态势的问题进行了解析，并尝试性搭建了新媒体环境下的记忆机制模型。研究发现，人们描绘出了以伟大功绩、家国天下情怀、人格魅力和科学精神为记忆主题，水稻、两个梦、吃饭、袁花花为核心记忆元素，线上线下联动性场域为记忆实践场所的记忆图景。新媒体环境下，多元主体协作构建集体记忆，以视听感官冲击为主的媒介形式占据了记忆形态主场。在记忆交流和博弈过程中，传统媒体仍占据主导地位，新媒体平台则为其他记忆主体提供了参与讨论、记忆构建的机会。 在现实事件刺激、权力因素、情感满足、文化体系、新技术特性的多重影响下，新媒体环境下的集体记忆被多方共同书写、建构，经过记忆交流、融合等过程，最终形成共识。

Since Halbwachs put forward the theory of "collective memory", scholars in history, sociology, journalism and communication have begun to introduce "memory" into this discipline for research. With the development of society and the birth of new media technology, scholars have studied memory more deeply, and the theory of collective memory has been further developed. Social memory, cultural memory and other theories have been put forward, memory research ideas such as memory shimmer, memory connection and global memory have also been put forward in the new media environment. This research mainly focuses on the changes in the form of people's memory practice, the construction and formation mechanism of collective memory in the new media environment. After the death of Yuan Longping, an upsurge of memory practice on the new media platform had appeared. This "memory fever" indicates the change of memory mechanism in the new media environment. Therefore, this paper takes "the construction of collective memory in the new media environment" as the core topic, and the memory practice on Weibo after Yuan Longping's death is chosen as a case study. Firstly, this study sorts out the contents of various memory theories and their relationships during development. Secondly, based on the theory of collective memory, the method of textual analysis is used to analyze the related contents of Yuan Longping's memory on Weibo from May 22nd to November 16th, 2021, which was collected by crawler software. Through the analysis of 6130 relevant contents, this study outlines the picture of Yuan Longping's memory. Thirdly, by analyzing the sequence of each memory topic been mentioned and the situation of each memory subject participating in practice, this paper discusses the reason of Yuan Longping's memory had been constructed in the new media environment. Finally, the paper answers the question of “Why such kind of memory situation appeared in the new media environment?” from the aspects of valence, culture and technology, and tries to build a memory mechanism model in the new media environment.The study found that people depicted a memory picture with memory themes including Yuan's great achievements, charisma, scientific spirits and his sentiments of 'Family, country and world'. The core memory elements consisted of 'rice', 'Two dreams', 'meal',and 'Yuan Huahua', while the memory practice sites were constructed by online and offline linkage fields. Under the new media environment, multiple subjects collaborated to construct collective memory, and the media form mainly based on audio-visual sensory impact occupied the main floor of memory form. In the process of memory communication and gaming, the traditional media still plays a dominant role, while the new media platform provides other memory subjects with the opportunity to participate in the discussion and memory construction. Under the multiple influences of realistic event stimulation, power, emotional satisfaction, characteristics of cultural system and new technology, collective memory in the new media environment is written and constructed by multiple parties together. Through memory communication and integration, a consensus is finally formed.