A projection apparatus comprising a light-emitting device, a driving circuit, and a control circuit, wherein the driving circuit is coupled to the light-emitting device and configured to drive the light-emitting device according to at least one control signal, so as to generate a projected beam, wherein the control circuit is configured to receive at least one video frame, to analyze color content of the at least one video frame, to select one of a highlight mode and a normal mode as a selected mode according to the color content, and to correspondingly set the at least one control signal to the driving circuit according to the selected mode, and wherein a brightness of the projected beam of the light-emitting device in the highlight mode is greater than a brightness of the projected beam of the light-emitting device in the normal mode, characterized in that: a ratio of a number of red sub-pixels satisfying a condition that a gray scale of a red sub-pixel is greater than a red threshold in the at least one video frame to a number of all red sub-pixels in the at least one video frame is a first ratio, a ratio of a number of green sub-pixels satisfying a condition that a gray scale of a green sub-pixel is greater than a green threshold in the at least one video frame to a number of all green sub-pixels in the at least one video frame is a second ratio, a ratio of a number of blue sub-pixels satisfying a condition that a gray scale of a blue sub-pixel is greater than a blue threshold in the at least one video frame to a number of all blue sub-pixels in the at least one video frame is a third ratio, when the first ratio is greater than a first ratio threshold, the second ratio is greater than a second ratio threshold, and the third ratio is greater than a third ratio threshold, the control circuit selects the highlight mode as the selected mode, and when the first ratio is less than the first ratio threshold, the second ratio is less than the second ratio threshold, or the third ratio is less than the third ratio threshold, the control circuit selects the normal mode as the selected mode. wherein the driving circuit is coupled to the light-emitting device and configured to drive the light-emitting device according to at least one control signal, so as to generate a projected beam, wherein the control circuit is configured to receive at least one video frame, to analyze color content of the at least one video frame, to select one of a highlight mode and a normal mode as a selected mode according to the color content, and to correspondingly set the at least one control signal to the driving circuit according to the selected mode, and to receive at least one video frame, to analyze color content of the at least one video frame, to select one of a highlight mode and a normal mode as a selected mode according to the color content, and to correspondingly set the at least one control signal to the driving circuit according to the selected mode, and wherein a brightness of the projected beam of the light-emitting device in the highlight mode is greater than a brightness of the projected beam of the light-emitting device in the normal mode, characterized in that: a ratio of a number of red sub-pixels satisfying a condition that a gray scale of a red sub-pixel is greater than a red threshold in the at least one video frame to a number of all red sub-pixels in the at least one video frame is a first ratio, a ratio of a number of green sub-pixels satisfying a condition that a gray scale of a green sub-pixel is greater than a green threshold in the at least one video frame to a number of all green sub-pixels in the at least one video frame is a second ratio, a ratio of a number of blue sub-pixels satisfying a condition that a gray scale of a blue sub-pixel is greater than a blue threshold in the at least one video frame to a number of all blue sub-pixels in the at least one video frame is a third ratio, when the first ratio is greater than a first ratio threshold, the second ratio is greater than a second ratio threshold, and the third ratio is greater than a third ratio threshold, the control circuit selects the highlight mode as the selected mode, and when the first ratio is less than the first ratio threshold, the second ratio is less than the second ratio threshold, or the third ratio is less than the third ratio threshold, the control circuit selects the normal mode as the selected mode. a ratio of a number of red sub-pixels satisfying a condition that a gray scale of a red sub-pixel is greater than a red threshold in the at least one video frame to a number of all red sub-pixels in the at least one video frame is a first ratio, a ratio of a number of green sub-pixels satisfying a condition that a gray scale of a green sub-pixel is greater than a green threshold in the at least one video frame to a number of all green sub-pixels in the at least one video frame is a second ratio, a ratio of a number of blue sub-pixels satisfying a condition that a gray scale of a blue sub-pixel is greater than a blue threshold in the at least one video frame to a number of all blue sub-pixels in the at least one video frame is a third ratio, when the first ratio is greater than a first ratio threshold, the second ratio is greater than a second ratio threshold, and the third ratio is greater than a third ratio threshold, the control circuit selects the highlight mode as the selected mode, and when the first ratio is less than the first ratio threshold, the second ratio is less than the second ratio threshold, or the third ratio is less than the third ratio threshold, the control circuit selects the normal mode as the selected mode.