The main aim of the current study was to identify solutions to maintain and increase Persepolis soccer club fans. The research method was mixed. Qualitative research method was used to identify those factors to maintain and increase Persepolis soccer club fans. Quantitative research method was used to assess their importance and prioritization. The statistical population included all pioneers, spectators and fans of Persepolis Soccer Club. The sample included 30 pioneers, spectators and fans in the qualitative sector and 383 subjects in the quantitative sector. Semi-structured interview and a researcher-made questionnaire were used to collect data. To analyze data, inferential statistics (Friedman test) was used. The results showed that social, infrastructural, economic, technical, cultural and value factors were respectively the most important factors affecting maintaining and increasing of Persepolis Soccer Club fans. So, managers and officials of Persepolis Soccer Club should consider these variables as important factors to maintain and increase fans.