The invention provides a small hydraulic crane with telescopic sections. A rear section hydraulic cylinder, a load-bearing lifting arm, a load-bearing hydraulic cylinder and a front section hydraulic cylinder are cooperatively mounted above a chassis; the top of the load-bearing hydraulic cylinder is articulated with the middle part of the load-bearing lifting arm; the rear section hydraulic cylinder, the load-bearing hydraulic cylinder and the front section hydraulic cylinder are mounted on the chassis in a manner of hinging; the outer side of the chassis is successively connected with a second rear section, a rear articulation shaft and a first rear section through an articulation shaft; the outer side of a chassis frame is successively connected with a second front section, a front articulation shaft and a first front section through an articulation shaft. The small hydraulic crane with the telescopic sections is compact and simple in structure and reasonable in design; the problem that the conventional large crane is incapable of operating in small places is solved; the small hydraulic crane with the telescopic sections is flexible to use and transfer and high in safety coefficient and is applicable to roads and pavements of various terrains; the construction time is reduced; the lifting efficiency is improved.