Resumen
This research aim as analyzing the influence of community behaviour on the quality of tourism services at Toba Lake North Sumatera. The method of research used mixed between quantitative and the qualitative research. Research sample were taken from 120 head of family at Toba Lake North Sumatera. The technique of data collection of research used documentation study, questionnaires, interviews and observations. The technique data analysis used Simple and Multiple Regression Analysis. The research results showed that there was positive and significant influence between community behavior on the quality of tourism services at Toba Lake North Sumatera. The recommendations of the research stated that it was important to enhance the quality of tourism services by enhancing knowledge, attitude and action about the quality of tourism services so that the quality of tourism services will be increased, and it need to establish tourism school at the Toba Lake North Sumatera