In these days, UAV-based application systems employed in various fields are being developed based on flight tests in actual field. UAV control and log data monitoring, typically performed during flight tests, is essential for performance analysis, equipment failure identification, flight control verification, and so on. However, these tasks based on general-purpose softwares are inefficient because additional work is required for data conversion. In this thesis, a software providing both UAV control and Log data monitoring is proposed to make it efficient to carry out the existing tasks. In the proposed software, individual data visualization as well as multiple data display via data synchronization are provided. To do this, common requirements was derived by selecting the functions required for UAV control and log data monitoring. The UI and software architecture were designed by analyzing the existing studies. The proposed software was implemented with C# WPF, Flight Gear, Google Map, etc. Various test results based on Cessna and Baron show that the proposed software can efficiently display multiple data on the screen without any other softwares.