A method for processing handwriting data is provided. The method includes filtering the handwriting data to remove one or more ineffective data points, acquiring a number of sampling points included in the handwriting data, when the number of the sampling points exceeds a first threshold, screening the handwriting data such that the number of the sampling points included in the screened handwriting data is not greater than the first threshold, acquiring attribute information of the handwriting data and processing the attribute information based on a preset length, and transmitting the screened handwriting data through a network.