A method for triggering a shooting mode, comprising acquiring (201;301;901), by a terminal device comprising a camera, a shooting preview image; recognizing, by the terminal device, gesture information in the shooting preview image; and triggering a shooting mode in the terminal device corresponding to a number characterized by the gesture information when determining that the gesture information characterizes the number, wherein the shooting mode comprises n grid shooting mode, and the n grid shooting mode is a shooting mode corresponding to the number n characterized by the gesture information; characterized by displaying a shooting preview interface, wherein the shooting preview interface comprises n shooting preview regions corresponding to the n grid shooting mode, and when n is greater than 1, shot images are displayed in first c-1 shooting preview regions of the n shooting preview regions when a c th image is shot in the n grid shooting mode, and the shooting preview image is displayed in a c th shooting preview region, wherein c is a positive integer not greater than n, n being an integer greater than zero; acquiring an a th image through a timing operation in the n grid shooting mode; and after acquiring an n th image, stitching the n images acquired to obtain an n grid image; or, acquiring a b th image through a trigger operation in the n grid shooting mode, wherein the b th image is acquired after the trigger operation is received; and after acquiring the n th image, stitching the n images acquired to obtain the n grid image; wherein after acquiring the n th image, stitching the n images acquired to obtain the n-grid image comprises: after the n th image is acquired, directly displaying a n-grid image that has been stitched; and when a is 1, a timing start time of the timing operation is a corresponding time when the gesture recognition model completes recognizing the gesture information; and when a is greater than 1, the timing start time of the timing operation is a corresponding time when acquiring an (a-1) th image is completed, and both a and b are integers greater than zero and not greater than n. acquiring (201;301;901), by a terminal device comprising a camera, a shooting preview image; recognizing, by the terminal device, gesture information in the shooting preview image; and triggering a shooting mode in the terminal device corresponding to a number characterized by the gesture information when determining that the gesture information characterizes the number, wherein the shooting mode comprises n grid shooting mode, and the n grid shooting mode is a shooting mode corresponding to the number n characterized by the gesture information; characterized by displaying a shooting preview interface, wherein the shooting preview interface comprises n shooting preview regions corresponding to the n grid shooting mode, and when n is greater than 1, shot images are displayed in first c-1 shooting preview regions of the n shooting preview regions when a c th image is shot in the n grid shooting mode, and the shooting preview image is displayed in a c th shooting preview region, wherein c is a positive integer not greater than n, n being an integer greater than zero; acquiring an a th image through a timing operation in the n grid shooting mode; and after acquiring an n th image, stitching the n images acquired to obtain an n grid image; or, acquiring a b th image through a trigger operation in the n grid shooting mode, wherein the b th image is acquired after the trigger operation is received; and after acquiring the n th image, stitching the n images acquired to obtain the n grid image; wherein after acquiring the n th image, stitching the n images acquired to obtain the n-grid image comprises: after the n th image is acquired, directly displaying a n-grid image that has been stitched; and when a is 1, a timing start time of the timing operation is a corresponding time when the gesture recognition model completes recognizing the gesture information; and when a is greater than 1, the timing start time of the timing operation is a corresponding time when acquiring an (a-1) th image is completed, and both a and b are integers greater than zero and not greater than n.