This study aims to 1) Product development of hand washing liquid soap smell Thai perfume 2) Physical and chemical properties Product of liquid soap hand wash smell Thai perfume and3) Consumer satisfaction survey on smell Thai perfume hand washing liquid soap products A questionnaire on consumers behaviors related to OTOP products was conducted. And smell test to choose the most acceptable smell. With 30 guests There were 3 levels of odor in liquid soap: 0.2 percent 0.5 percent and 0.8 percent. With 5 experts Experimental plot design RCBD (Randomized Complete Block Design) The 9-tailed test was used (9–point Hedonic scale) with sensory tests and use percentage statistics. With Acceptance and satisfaction test and physical properties viscosity color and chemical analysis of alkalinity were analyzed. 100 people were tested for satisfaction. The results indicate that most consumers are mostly female. Think 73.3 percentage. The behavior of consumers in using smell Thai perfume. Liking smell Thai perfume flower scent it thinks 90 percentages. bottle filling 100 cc it think53.3 percentages. And the smell that is most liked is the smell of Pip flowers. The average level of smell is very similar. At the rate of replacement liquid soap to smell the smell Thai perfume. The highest score was the formula 2 /0.5 percentage. Physical Properties of Viscosity stability at 527.4 Point Centrino it is liquid stability on surface very gool. Color values have average brightness (L*) green values (a*) and blue values (b*) is equal to 16.47. The liquid soap is greenish yellow. Chemical qualities in acidity it was found that the pH value was 5-8 (6.20 ± 0.01). Followed by product standards community. Consumers are satisfied with liquid soap products with smell Thai perfume like 50.1 percent in terms of color intensity like 35 percent Is the sole of liquid soap like 62 percent Medium scent like 44 percent Medium Concentration like 69 percent finally not irritating to the skin like 98 percent.