Proton conducting materials show importantly technological applications in the energy conversion,electrochemical sensing and electrochromic devices.In the last decade,many researchers have paid much attention to the study of proton conducting property of open-framework crystalline materials,including MOFs,COFs and open-framework transition metal phosphates owing to the periodic channels benefiting the protonic carriers transport.Regarding MOFs and COFs,open-framework phosphates show more excellent thermal and water stabilities.