Two-dimensional (2D) materials are considered as the ideal materials for the next-generation information devices, owing to their nanoscale sizes, novel electronic properties, excellent mechanical properties, et al. In recent years, with the development and improvement of bottom-up preparation methods, such as epitaxial growth method, and material calculation methods, more and more two-dimensional materials with non-layered bulk phases have been prepared and discovered. Here, the research progresses of new two-dimensional group 11 (include Cu, Ag, Au) chalcogenides with non-layered bulk phases which show application potential in information devices and other fields are summarized. Taking stoichiometric ratio as the main line, the atomic structures and physical properties of monolayer MX (M=Cu, Ag, Au; X=O, S, Se, Te), M2X and other stoichiometric-ratio group 11 chalcogenides are introduced in detail from both experimental and theoretical perspectives. Two-dimensional group 11 chalcogenides possess not only all electronic properties (metal, semiconductor and insulator) but also abundant novel physical properties (superconductivity, topology, magnetism, etc.). Due to the novel properties and potential applications of the 2D group 11 chalcogenides, the novel class of 2D materials is worthy of more attention.