A pet waste collecting device including a telescopic shaft assembly, a dispensing assembly, a scooping assembly and a handle assembly is disclosed. The telescopic shaft assembly can be retracted or expanded for easy use by users of all heights. The dispensing assembly is mounted onto the telescopic shaft assembly and is adapted to hold a granular material therein. When necessary, the granular material held therein is released to cover the pet waste for easier collecting thereof. The dispensing assembly is adapted to expand or retract along with the telescopic shaft assembly. Importantly, the handle assembly is mounted on a distal end of the telescopic shaft assembly. On an opposite distal end of the telescopic shaft assembly the scooping assembly is mounted thereon. Upon usage of the handle assembly the scooping assembly is controlled in order to open or close the scooping assembly to collect and later dispose of pet waste.