Relation curves of lateral resistance force per unit length to pile deflection were measured for single battered piles based on model tests under horizontally loads in medium-dense dry sand. The relations of the profile of limiting lateral resistance force per unit length (LFP) and initial subgrade reaction coefficient to batter angle of inclined piles and plumb piles were analyzed. A hyperbolic expression was used to establish a p-y curve approach for battered pile subject to lateral loads. The results were calculated by using the hyperbolic p-y curves established herein and that reported in literatures. The calculation results accorded well with the experimental results, which verified the rationality of the above method. The approach was used to analyze the behaviors of laterally loaded batter piles. 1) The pile-top lateral displacement, the maximum bending moment and the maximum shearing force in a fixed-head batter pile are less than that of a free-head batter pile with which induced the same load. 2) The vertical downwards load on the pile top can increase the pile-top lateral displacement, the maximum bending moment and the maximum shearing force for both the positively battered piles and the plumbed piles. The pile-top lateral displacement, the maximum bending moment and the maximum shearing force will firstly decrease to zero and then increase reversely with the increase of vertical downwards load in the case of negatively battered piles. The pile-top lateral displacement, the maximum bending moment and the maximum shearing force of the plumbed pile, under a same lateral load, will decrease with the increase of the vertical uplifting load, while that of the positively battered pile decreases to zero and then increases reversely with the increases of the vertical uplifting load, and that of the negatively battered pile increases with the increase of the vertical uplifting load.