According to the present invention, environmental stress resistance is imparted to a plant or the environmental stress resistance of a plant is improved. At least one gene selected from the group consisting of an LRR-RLP gene selected from a 1st group (including At2g33080), an LRR-RLK gene selected from a 2nd group (including At1g69990), and an LRR-RLK gene selected from a 3rd group (including At5g39390) is introduced into a plant, or an expression control region of an endogenous gene is altered in a plant.