A MEMS device comprising: an optical component; and a drive portion (21, 22) including a drive unit having a first drive portion and a second drive portion, both of which extend in a first direction and arranged in a second direction orthogonal to the first direction, and a first connecting portion connecting the first drive portion to the second drive portion, configured to incline the optical component, wherein the first drive portion is divided into a first drive section on a first side in the first direction, a second drive section on a second side in the first direction, and a non-drive section formed between the first drive section and the second drive section, the second drive portion is divided into a third drive section on the second side in the first direction connected to the second drive section through the first connecting portion, a fourth drive section on the first side in the first direction, and a non-drive section formed between the third drive section and the fourth drive section, the first drive section, the second drive section, the third drive section, and the fourth drive section are controlled for driving independently of each other to incline the optical component in a biaxial direction about a first rotation axis line and a second rotation axis line extending in the first direction and the second direction orthogonal to each other in a same plane, respectively, the first drive section and the second drive section are controlled for driving in a same manner and the third drive section and the fourth drive section are controlled for driving in a same manner to incline the optical component about the first rotation axis line, or the first drive section and the third drive section are controlled for driving in a same manner and the second drive section and the fourth drive section are controlled for driving in a same manner to incline the optical component about the second rotation axis line. an optical component; and a drive portion (21, 22) including a drive unit having a first drive portion and a second drive portion, both of which extend in a first direction and arranged in a second direction orthogonal to the first direction, and a first connecting portion connecting the first drive portion to the second drive portion, configured to incline the optical component, wherein the first drive portion is divided into a first drive section on a first side in the first direction, a second drive section on a second side in the first direction, and a non-drive section formed between the first drive section and the second drive section, the second drive portion is divided into a third drive section on the second side in the first direction connected to the second drive section through the first connecting portion, a fourth drive section on the first side in the first direction, and a non-drive section formed between the third drive section and the fourth drive section, the first drive section, the second drive section, the third drive section, and the fourth drive section are controlled for driving independently of each other to incline the optical component in a biaxial direction about a first rotation axis line and a second rotation axis line extending in the first direction and the second direction orthogonal to each other in a same plane, respectively, the first drive section and the second drive section are controlled for driving in a same manner and the third drive section and the fourth drive section are controlled for driving in a same manner to incline the optical component about the first rotation axis line, or the first drive section and the third drive section are controlled for driving in a same manner and the second drive section and the fourth drive section are controlled for driving in a same manner to incline the optical component about the second rotation axis line.