Disclosed is a novel tarpaulin-type power optical fiber splice closure including a cable inlet pressing plate, an aluminum sleeve, a base, a fiber storage box and a connector box body. The cable inlet pressing plate is disposed at the lowermost part of the overall structure; the aluminum sleeve is disposed in the cable inlet pressing plate; the base is disposed at the upper part of the cable inlet pressing plate; the fiber storage box is connected to the base and disposed above the base; and the connector box body is connected to the base. According to the utility model, risks of fiber cut caused by entry of water into the power optical fiber splice closure are reduced; the safe and stable operation of a power optical cable line is facilitated; the making process is simple and clear; the structure is simple and practical; the development cost is low; and large-scale promotion and application are easily achieved.