With the widespread adoption of 5G mobile video applications and the rapid surge of domestic video streaming demands，there exists an imperative for a novel data transmission protocol that ensures reliable security while satisfying the escalating requirements for increased access connections and reduced latency. The MPQUIC （Multipath Quick UDP Internet Connection） protocol is widely regarded as a pivotal element in the future mobile internet data transmission due to its unique capability to leverage multiple link bandwidth resources，exhibit robust connection fault tolerance，and deliver high reliability. However，despite its promising potential，research on the MPQUIC protocol is still in its nascent stages，and there is currently a dearth of universally adopted or open⁃source simulation platforms dedicated to studying this protocol. To address this pressing need，we have developed the MPQUIC simulation platform on the widely acclaimed NS⁃3 network simulator (ns3⁃mpquic). This open⁃source and freely available platform establishes a solid foundation for investigating the intricacies of the MPQUIC protocol，empowering global experts and scholars to simulate and explore its deployment and optimization. By providing this essential resource，we aim to facilitate in⁃depth studies and foster the advancement of the MPQUIC protocol.