Post-harvest loss of different vegetables in Bangladesh is widespread due to the lack of suitable technologies. A laboratory trial was conducted to assess the effect of chitosan coating on weight loss, shelf-life, biochemical qualities and mineral elements of carrots at postharvest storage. At room temperature (≈ 23-25ºC), four treatments were selected with different chitosan solutions (0.00%, 0.10%, 0.20% and 0.30%). Matured carrots were collected at 2, 4, 6 and 8 days after postharvest storage (DAPS) for weight loss, while the shelf-life data were measured at 4 and 8 DAPS. On the other hand, carrots were collected at 0 (fresh) and 8 DAPS to determine total sugar, phenolic and mineral contents (Ca, Mg, P, S, Na, and K). Compared to control, the application of 0.30% chitosan coating preserved weight loss by 1.48% at 8 DAPS. The results also showed that applying 0.30% chitosan coating significantly (P≤ 0.05) extended the shelf-life of carrots up to 35% at 8 DAPS compared to the control. Chitosan coatings also enhanced the loss of total sugars and contents of Mg in carrots during postharvest storage. However, total phenolic contents in carrots