An cellular phone holder includes a holder apparatus, a fixed apparatus, and an operating apparatus. The holder apparatus includes a main body. The fixed apparatus includes a fixed plate longitudinally disposed thereon. A teeth-formed end composed of a plurality of protruding teeth is formed on one side of the fixed plate, and the protruding teeth are upwardly inclined. The operating apparatus includes an operating element transversely disposed on the main body, and a plurality of propping teeth corresponding to the teeth-formed end are formed on the operating element, and the propping teeth are downwardly inclined, which has the stable and accurate effective, thereby accurately fastening without the shaking phenomenon.