Taxi service strategy is a group of taxi drivers' wisdom embodied, hidden in the large-scale taxi GPS data.Mining GPS traces using big data analysis tools to find and understand the service strategies of skilled taxi drivers to guide other drivers can increase their salaries and improve the efficiency of taxi operation.Passenger searching strategy is the main content of taxi service strategies, which loads GPS traces data into HDFS after the data pre-processing;splits the data to get each driver's personal GPS traces;calculates driver's salary;models taxi driver's service strategies;and then studies how the service strategies influence the driver's salary.A case study indicates that, the differences between the taxi drivers who have better salaries and the drivers who have ordinary salaries are significant in terms of passenger searching strategy.