To provide a connector of curing sheets for shortening a work time and improving work efficiency at a construction site, for stretching the curing sheets evenly even when a plurality of different workers stretch them, and for reducing an amount of waste and a cost of construction by reusing the connector.

The curing sheets 7 are connected with each other by a connector A which is inserted into opposite connecting openings 8 of the curing sheets 7 adjacent to each other. The connector A is inserted into the opposite connecting opening 8 of the adjacent curing sheets 7, and both ends of the connector A are engaged with each other by an engaging means 3, 5, which are freely engageable and detachable.