A roll of a white heat-shrinkable polyester-based film comprising at least one layer of a white polyester-based resin layer containing titanium oxide and satisfying the following requirements to: the length of the film is 1000 m or more and 20000 m or less and the width of the film is 1000 mm or more and 10000 mm or less; the heat-shrinkage ratio in a main shrinkage direction is 50% or more and 85% or less, wherein the heat-shrinkage ratio is measured according to a hot water treatment of a treatment temperature of 98°C and a treatment time of 10 seconds; the difference between the maximum and minimum heat-shrinkage ratio in the main shrinkage direction among samples is 0% or more and 3% or less, wherein the heat-shrinkage ratio is measured according to the hot water treatment of a treatment temperature of 98°C and a treatment time of 10 seconds and the samples are taken from each part of the film divided into five in the film width direction; the difference between the maximum and minimum heat-shrinkage ratio in the main shrinkage direction among samples is 0% or more and 3% or less, wherein the heat-shrinkage ratio is measured according to the hot water treatment of a treatment temperature of 98°C and a treatment time of 10 seconds and the samples are taken from the film every 100 m in the film longitudinal direction from the place forming surface layer of the roll of the white heat-shrinkable polyester-based film to the starting place of winding the film; the difference between the maximum and minimum apparent specific gravity among samples is 0 g/cm 3 or more and 0.01 g/cm 3 or less, wherein the samples are taken from each part of the film divided into five in the film width direction; and the difference between the maximum and minimum apparent specific gravity among samples is 0 g/cm 3 or more and 0.010 g/cm 3 or less, wherein the samples are taken from the film every 100 m in the film longitudinal direction from the place forming surface layer of the roll of the white heat-shrinkable polyester-based film to the starting place of winding the film. the length of the film is 1000 m or more and 20000 m or less and the width of the film is 1000 mm or more and 10000 mm or less; the heat-shrinkage ratio in a main shrinkage direction is 50% or more and 85% or less, wherein the heat-shrinkage ratio is measured according to a hot water treatment of a treatment temperature of 98°C and a treatment time of 10 seconds; the difference between the maximum and minimum heat-shrinkage ratio in the main shrinkage direction among samples is 0% or more and 3% or less, wherein the heat-shrinkage ratio is measured according to the hot water treatment of a treatment temperature of 98°C and a treatment time of 10 seconds and the samples are taken from each part of the film divided into five in the film width direction; the difference between the maximum and minimum heat-shrinkage ratio in the main shrinkage direction among samples is 0% or more and 3% or less, wherein the heat-shrinkage ratio is measured according to the hot water treatment of a treatment temperature of 98°C and a treatment time of 10 seconds and the samples are taken from the film every 100 m in the film longitudinal direction from the place forming surface layer of the roll of the white heat-shrinkable polyester-based film to the starting place of winding the film; the difference between the maximum and minimum apparent specific gravity among samples is 0 g/cm 3 or more and 0.01 g/cm 3 or less, wherein the samples are taken from each part of the film divided into five in the film width direction; and the difference between the maximum and minimum apparent specific gravity among samples is 0 g/cm 3 or more and 0.010 g/cm 3 or less, wherein the samples are taken from the film every 100 m in the film longitudinal direction from the place forming surface layer of the roll of the white heat-shrinkable polyester-based film to the starting place of winding the film.