The present investigation was carried out at Horticulture Research Centre, Patharchatta, G.B. Pant University of Agriculture and Technology, Pantnagar to observe the effect of different high density planting on yield and quality of guava during the years 2012-13 and 2013-14. Treatments were consisted of four plants spacing i.e., 1.0 x 1.0 m, 2.0 x 1.0 m, 2.0 x 1.5 m and 1.5 x 1.5 m replicated six times in randomized block design. Findings revealed that plant spacing 2.0 x 1.5 m gave significantly maximum TSS, total sugars, reducing sugar, non-reducing sugar and mean fruit weight, whereas, lesser plant spacing (1.0 x 1.0 m) resulted significantly lower mean fruit weight. Significantly higher yield per plant was obtained in plant spaced at 2.0 x 1.5 m. The significantly higher yield per hectare was obtained with plant spacing of 1.0 x 1.0 m during both the years.