Orange beverage packaging has a sweet and slightly sour taste to be a favorite of many people especially children. This drink contains sugar, grapefruit, orange flavors, and acid regulator. Consumption of sugar-containing beverages can affect plaque pH rapidly to levels that may cause demineralization of enamel, and thick plaque will inhibit salivary function to neutralize it (Kidd, 1991). The purpose of this research is to know the influence of orange beverage packaging to salivary pH change in Srondol Kulon 02 elementary school in 2017.The type of the research is quantitative descriptive design with Quasi Experimental Research method or quasi experiment and pretest-posttest control design. The population of this research are students of Srondol Kulon 02 elementary school Banyumanik Semarang as many as 623 students. The sample used 68 students were taken systematic random sampling. Samples were divided into 2 groups, 34 students for the treatment group (drinking orange beverage packing) and 34 students for the control group (drinking water). The analysis used descriptive by showing the frequency distribution and average.The results showed that there was a difference between the treatment group and the control group. The salivary pH state before drinking orange beverages is the base and the pH state of saliva after drinking the orange beverage packing is acid decreased pH by 0.46, whereas saliva pH before drinking water is base and saliva pH after drinking water is base decreasing pH by 0.22. It is suggested to the public not to consume too much of orange drink because it can decrease saliva pH.