The purpose of this research is to investigate the behavior of gold nanofluid triple line. Using a microscope equipped with a 100X lens and Volocity software, the movement of nanofluid triple line and gold nanoparticles were tracked at the vicinity of triple line during the drying process. It was observed that some of gold nanoparticles move toward triple line, some of them move toward nanofluid bulk and some of them circulating at the vicinity of triple line. The movement of nanoparticles might be attributed to Marangoni flow at the vicinity of triple line. The stick-slip behavior of nanofluid triple line was also detected during the drying process.