How to learn the embedding vectors of nodes in unsupervised large-scale heterogeneous networks is a key problem in heterogeneous network embedding research. This paper proposes an unsupervised embedding learning model. named LHGI (Large-scale Heterogeneous Graph Infomax). LHGI adopts the subgraph sampling technology under the guidance of metapaths. https://www.ealisboa.com/limited-price-Cable-Splitter-weBoost-WilsonPro-by-Wilson-Electronics-mega-offer/