The invention provides a rainproof distribution box and belongs to the distribution power supply technology field. A distribution box is arranged on a lifting mechanism. The lifting mechanism carriesout lifting movement to realize conversion between rising and falling states of the distribution box. The distribution box comprises a box body and a box door hinged to the box body. A rain shieldingmechanism is arranged on the box door. The rain shielding mechanism carries out contraction and release movement to achieve the conversion between tightening and opening states. The distribution box has advantages that the distribution box is arranged on the lifting mechanism so as to effectively prevent a condition that rainwater on the ground enters into the distribution box so as to cause electric leakage and endanger personal safety; the rain shielding mechanism is installed on the box door to prevent rainwater from entering into the distribution box along the box door, which can solve a problem that a work carries out maintenance inconveniently because of a rain gear; and an upper space of the distribution box is not covered so that maintenance personnel can carry out maintenance inspection on equipment in the distribution box conveniently.