Portable pet excrement collecting device

The utility model relates to a portable pet excrement collecting device, comprising a hand-hold clamp, a leather bag and a collecting bag, wherein the hand-hold clamp is formed by buckling two clamping pieces of which the front ends are arc-shaped; a leather bag hole is formed in one clamping piece; a pressing ring is arranged on the leather bag hole; the leather bag is fixed on the leather bag hole; the collecting bag is arranged in the leather bag; and the collecting bag is fixed on the corresponding clamping piece through the pressing ring. The portable pet excrement collecting device is simple in structure and convenient to carry when a user carries a pet to walk, exercise or go sightseeing, and especially carries the pet to public places; the excrement of the pet can be collected into the collecting bag anytime; and the problem that the excrement of the pet influences the appearance of a city and pollutes the public environment is solved. When the device is used each time, only the collecting bag needs t