Embodiments of the invention provide a spell check method and device. The spell check method and device are applied to electronic equipment. The spell check method comprises the following steps of: detecting a character input operation in real time; after the character input operation is detected, determining positions of a first target word segmentation sign and a second target word segmentation sign from the current position of a cursor, and extracting a to-be-detected target character string between the position of the first target word segmentation sign and the position of the second target word segmentation sign, wherein the first target word segmentation sign is a closest word segmentation sign on the left of the current positions and the second target word segmentation sign is a closest word segmentation sign on the right of the current position; carrying out error detection on the target character string; and executing a processing action corresponding to a result obtained through the error detection. Through the method and device, the problem that the error detection result feedback period is relatively long can be solved.