The utility model relates to a battery leak protection dress structure, including casing and the closing cap upper cover in the casing upper end, be equipped with the battery compartment in the casing, be equipped with elastic support structure in the casing, elastic support structure's middle part embedding is in the battery compartment, and outside elastic support structure's upper end extends to the casing up, with the upper cover butt, elastic support structure's lower extreme and casing are connected, and when the built -in live pond of battery compartment, elastic support structure removes down to make upper cover and casing closed, when being unkitted the live pond in the battery compartment, elastic support structure's upper end jack -up upper cover makes to have the distance between upper cover and the casing. The utility model discloses a whether upper cover and casing can fold, judge and whether load the battery, and anodal storehouse and negative pole storehouse through setting up different width, realize that the user is convenient for discover the phenomenon and the positive and negative phenomenon of anti -ing the dress of battery of battery neglected loading, avoidnot having power failure or power input error and the potential safety hazard phenomenon that leads to.