With mono-embryonic of‘Jinhuang’and‘Guifei’,poly-embryonic of ‘Baixiangya’ and ‘Hongyu’ as test materials from the same age mango orchards and management conditions,we measured the quality characters of 30 fruits each plant,18 plants each variety after full bloom every week.We compared the variation of main quality characteristics between mono-embryonic and poly-embryonic during fruit development and ripe,in order to provide a theoretical basis for improving the quality of mango fruit and mango cultivation of new varieties.The results showed that:(1)Soluble sugar and soluble solids contents of mono-embryonic varieties mango fruit from the early development to the ripe stage were significantly higher than that of poly-embryonic varieties.(2)Titratable acidity increased firstly and then decreased during mango fruit developmental process.And the highest value of premature fruits and the final values in ripe period of mono-embryonic varieties are much higher than that of poly-embryonic varieties.（‘Hongyu’> ‘Baixiangya’>‘Guifei’>‘Jinhuang’）.(3)The solid acid ratio of mango fruits of all varieties are stable before ripe period and are rapidly rising to the highest,with the peak performance‘Jinhuang’(83.8%)>‘Baixiangya’(50.04%)>‘Guifei’(49.41 %)>‘Hongyu’(29.52%).(4)The peak and final values of carotenoid content of mango fruit in ripe period of mono-embryonic varieties were significantly higher than that of poly-embryonic varieties,and the yellow flesh of mono-embryonic varieties more obvious.Research shows that the mango fruit quality of mono-embryonic varieties is better than that of poly-embryonic varieties.