Physicochemical analysis was carried out for products of sugarcane in an attempt to study the quality of main-product (sugar) from Halfa Elgadidah Sugar Factory at six periods (T1, T2, T3, T4, T5, T6) corresponding to (3, 6, 12, 24, 36 and 48) hours after harvesting, respectively, during 2007/2008 and 2008/2009 seasons. Randomized complete plot design with three replications was used in this study. The results revealed that the average levels of total soluble solids (TSS), sucrose, sweetness, reducing sugars, were 99.7%, 98.45%, 98.68%, 0.185%, Traces of ash were found in sugar samples, they did not exceed 0.04. Moreover, protein content not exceeding 1.0 in sugar samples, the colour ranged between 236– 268 and between 233.7–285.3 (IU) for the two seasons respectively. The relative viscosity ranged between 0.888–0.913 and between 0.884 – 0.903. The kinematic (absolute) viscosity of the sugar solutions ranged between 1.896 and 1.915 and between 1.894–1.914 centistokes for the two seasons respectively. The pH values of the sugar solution were in the range of 6.93-6.98 and 6.92–6.98 for the two seasons respectively. The moisture content ranged between 0.19–0.21% for the two seasons. The results showed that the optimum duration from cut to mill to produce a qualified sugar not exceeding 6 hours after harvesting.