The results of the present investigation indicated that, different levels of NPK had shown varied response to yield and quality of guava. The yield and yield contributing characters were also significantly superior with the application of 300:150:150 g NPK/tree and at par results are seen with the application of NPK@ 350:175:175 g/tree. The maximum values of physical quality characters like, fruit length (5.45 cm), fruit diameter (5.71 cm), volume of fruit (159.54 ml), weight of pulp (187.12 g), pulp: seed ratio (28.83) and chemical quality attributes like TSS (10.42 0Brix), reducing sugars (3.65%), total sugars (6.55%), organoleptic taste (20.53 out of 25) and shelf life (6.87 days) and minimum physiological weight loss (7.07%) were recorded with the application of 300:150:150 g NPK/tree (T6). The fruits obtained with the application of 350:175:175 g NPK/tree (T7), 400:200:200 g NPK/tree (T8) and 250:125:125 g NPK/tree (T5) has shown at par results. Hence, it can be concluded that, for the guava trees grown under high density planting dose of application of NPK @ 300:150:150 g/tree was found to be optimum for getting higher yield and superior quality of guava fruits by maintaining the soil fertility.