The present invention provides a method and apparatus of forming Chinese prosodic words, which method comprises the steps of inputting Chinese text; performing process of word segmentation and part of speech annotation for the input Chinese text to generate an initial prosodic word sequence; inserting grids representing prosodic word boundaries for all the words in the initial prosodic word sequence to generate a grid prosodic word sequence; annotating the grids ready to be deleted in the grid prosodic word sequence based on the prosodic word forming means; judging the grids which actually need to be deleted in the grids ready to be deleted based on the prosodic word forming means; deleting the grids which actually need to be deleted in the grid prosodic word sequence, and word forming the words between every two grids in the remaining grids to generate prosodic words. The present invention avoids the defect whereby the type of insertion error of the prosodic word would render the pronunciation hard to understand or unnatural as far as possible, and reduces the number of the type of insertion error of prosodic word boundaries.