This paper presents a data acquisition system (DAS) for body-to-body radio com- munication channel by using Labview. In order to analyze the characteristics of channel fading on body-to-body radio communication channel, a real time DAS must be utilized. The software will be integrated in the measurement system that uses an Agilent Vector Network Analyzer (VNA) (model PNA E8362B),desktop and an interface buses (GPIB)-USB cable from National Instrument (NI). A computer connected to VNA will carry out the acquisition of large data. The measurement data, S21 -parameter, will be recorded and stored for offline processing usage. In addition, by using this software, it is more convenient and easier to collect a large data set. This software is also able to capture rapid changes of S-parameter values in dynamic human body mo- tions that requires for further investigation. The comparison of data acquisition between without and with the integrated software is analyzed. The results demonstrate that DAS satisfies the re- quirement to obtain real-time data with minimum error up to 0.02 dB for magnitude and almost 0 degree for phase of S11 -parameter.