Residents' elastic travel characteristics are the product of the rapid development of cities,with the continuous improvement of urban residents' living standards,the proportion of flexible travel in all travel is gradually increasing,therefore, the research on Residents' flexible travel is becoming more and more important.To study the influencing factors of residents' elastic travel characteristics,firstly, the RP-SP fusion data of residents' elastic travel behavior survey is used，combined with the variance expansion test method, this paper studies the linear correlation between the factors affecting residents' elastic travel characteristics,finally, a multivariate logistic model is constructed to analyze the significance of influencing factors when residents obtain travel time information and weather information before flexible travel.The results show that at the significance level of 0.05, the influencing factors such as age, type of tourists and main means of transportation significantly affect residents' flexible travel choice；residents get traffic information before travel. The probability of flexible travel can be effectively reduced by 9%, which can reduce traffic pressure and alleviate traffic congestion to a certain extent.