Rattanarithikul started her career as a lab technician in 1959 for a malaria mosquito research project of the Southeast Asia Treaty Organization (SEATO).
[1] She directed lab assistants in making preliminary identifications of specimens, mounting and labelling them, and maintaining records.
[1] She studied medical entomology and Japanese in Kobe University in Japan, earning her doctorate in 1996.
She has also consulted for a project to develop a national entomology collection for Thailand at the Queen Sirikit Botanical Garden.
The museum serves as a cabinet of curiosities[7] for their collection of fossils, petrified wood, stones, and carvings as well as insect species.