The morphological and histological observation on the skin of larval Pseudohynobius jinfo was conducted by optical and scanning electron microscopy. Measurements were performed using image software Image-Pro Plus 6.0. All statistical tests were performed using software SPSS 19.0. All values given were shown as Mean ± SE. P < 0.05 was considered significant in t test. The skin of P. jinfo consisted of epidermis and dermis (Fig. 1, 3), but the thicknesses were different at different positions of the body (Table 1). The skin of the back head was the thinnest (45.99 ± 12.77 μm) and the ventral side of tail was the thickest (95.21 ± 42.72 μm). The stratum corneum consisted of stratified squamous epithelium cells with biological activity only found in the skin of tail and the back of trunk (Fig. 1). The skin of the jaw and that of ventral side of trunk were different from other parts (Fig. 2). Both mucus glands and granular glands were found (Table 2). Mucus glands widely spread over the body. Granular glands were distributed in the skin of trunk and tail. The capillary vessels were abundant around glands in stratum spongiosum and moved outside to make the epidermis thinner. Pigment cells were mainly distributed in stratum spongiosum near the epidermis (Fig. 3).