Abstract: A grip structure of water sprayer comprises a sprayer body, a grip body is extended downward from one end of the sprayer body, a front surface of the grip body is covered with a front grip fitting portion, a fixing structure is disposed on a back surface of the grip body, a back grip fitting portion is fitted on the back surface of the grip body. The back grip fitting portion has a fitting structure to be fitted and engaged with the fixing structure, so that the back grip fitting portion is fitted on the grip body. Accordingly, the back grip fitting portion of the present invention can be dismounted and replaced at will which is convenient for maintenance and usage.