A method for predictively decoding a motion vector used in motion compensated prediction to restore a video sequence consisting of a temporal sequence of a plurality of frame pictures, comprising: a step of determining a first motion vector predictor candidate that satisfies a predetermined criterion used in determination of motion vector predictor candidates, from motion vectors of partitions (BD, BL2, BL1, BL) belonging to a left-neighboring region located on a left side of a target partition in a frame picture of a decoding target; a step of determining a second motion vector predictor candidate satisfying a predetermined criterion used in determination of motion vector predictor candidates, from motion vectors of partitions (BPA, BA2, BA1, BA, BE) belonging to an above-neighboring region located above the target partition; a step of decoding coded data and restoring motion vector predictor indication information that specifies a motion vector predictor of the target partition; and a step of selecting a motion vector predictor specified by the motion vector predictor indication information, from motion vector predictor candidates including at least the first motion vector predictor candidate and the second motion vector predictor candidate; wherein the step of determining a second motion vector predictor candidate determines a motion vector that satisfies the predetermined criterion used in determination of motion vector predictor candidates as a second motion vector predictor candidate, from motion vectors of partitions (BPA, BA2, BA1, BA, BE), by scanning the partitions (BPA, BA2, BA1, BA, BE) belonging to the above-neighboring region, from a right direction to a left direction, and when there is a j-th partition in a scan order in the above-neighboring region and when the j-th partition has a motion vector, determines whether the j-th partition and the target partition have a same reference picture list identification (ref_list) and reference picture identification (ref_idx), and when the j-th partition and the target partition have the same reference picture list identification (ref_list) and reference picture identification (ref_idx), determines the motion vector of the j-th partition as the second motion vector predictor candidate. a step of determining a first motion vector predictor candidate that satisfies a predetermined criterion used in determination of motion vector predictor candidates, from motion vectors of partitions (BD, BL2, BL1, BL) belonging to a left-neighboring region located on a left side of a target partition in a frame picture of a decoding target; a step of determining a second motion vector predictor candidate satisfying a predetermined criterion used in determination of motion vector predictor candidates, from motion vectors of partitions (BPA, BA2, BA1, BA, BE) belonging to an above-neighboring region located above the target partition; a step of decoding coded data and restoring motion vector predictor indication information that specifies a motion vector predictor of the target partition; and a step of selecting a motion vector predictor specified by the motion vector predictor indication information, from motion vector predictor candidates including at least the first motion vector predictor candidate and the second motion vector predictor candidate; wherein the step of determining a second motion vector predictor candidate determines a motion vector that satisfies the predetermined criterion used in determination of motion vector predictor candidates as a second motion vector predictor candidate, from motion vectors of partitions (BPA, BA2, BA1, BA, BE), by scanning the partitions (BPA, BA2, BA1, BA, BE) belonging to the above-neighboring region, from a right direction to a left direction, and when there is a j-th partition in a scan order in the above-neighboring region and when the j-th partition has a motion vector, determines whether the j-th partition and the target partition have a same reference picture list identification (ref_list) and reference picture identification (ref_idx), and when the j-th partition and the target partition have the same reference picture list identification (ref_list) and reference picture identification (ref_idx), determines the motion vector of the j-th partition as the second motion vector predictor candidate.