A piezoelectric drive device (1000, 1000s, 1000t, 1000u, 1000v) comprising: multiple piezoelectric drive units (10s1 to 10s3, 10t1 to 10t3, and 10s1u to 10s3u, 10s1d to 10s3d, 10t1u to 10t3u, 10t1d to 10t3d) that drive a driven member (50, 53), wherein each of the multiple piezoelectric drive units has a vibrating plate, a piezoelectric vibrating body which is disposed on the vibrating plate, and a contact member which can come into contact with the driven member, wherein the multiple piezoelectric drive units belong to a first piezoelectric drive unit group and a second piezoelectric drive unit group, wherein the respective contact members of the multiple piezoelectric drive units belonging to the first piezoelectric drive unit group are arranged at a position which is symmetrical to a movement center axis or a movement center line of the driven member, wherein the respective contact members of the multiple piezoelectric drive units belonging to the second piezoelectric drive unit group are arranged at a position which is symmetrical to a movement center axis or a movement center line of the driven member, and the piezoelectric drive device being configured such that a timing when the respective contact members of the first piezoelectric drive unit group press the driven member is different from a timing when the respective contact members of the second piezoelectric drive unit group press the driven member, characterized in that each piezoelectric vibrating body includes a substrate, a first electrode which is formed on the substrate, a piezoelectric substance which is formed on the first electrode, and a second electrode which is formed on the piezoelectric substance, wherein a thickness of the piezoelectric substance is within a range of 0.05 μm to 20 μm. multiple piezoelectric drive units (10s1 to 10s3, 10t1 to 10t3, and 10s1u to 10s3u, 10s1d to 10s3d, 10t1u to 10t3u, 10t1d to 10t3d) that drive a driven member (50, 53), wherein each of the multiple piezoelectric drive units has a vibrating plate, a piezoelectric vibrating body which is disposed on the vibrating plate, and a contact member which can come into contact with the driven member, wherein the multiple piezoelectric drive units belong to a first piezoelectric drive unit group and a second piezoelectric drive unit group, wherein the respective contact members of the multiple piezoelectric drive units belonging to the first piezoelectric drive unit group are arranged at a position which is symmetrical to a movement center axis or a movement center line of the driven member, wherein the respective contact members of the multiple piezoelectric drive units belonging to the second piezoelectric drive unit group are arranged at a position which is symmetrical to a movement center axis or a movement center line of the driven member, and the piezoelectric drive device being configured such that a timing when the respective contact members of the first piezoelectric drive unit group press the driven member is different from a timing when the respective contact members of the second piezoelectric drive unit group press the driven member, characterized in that each piezoelectric vibrating body includes a substrate, a first electrode which is formed on the substrate, a piezoelectric substance which is formed on the first electrode, and a second electrode which is formed on the piezoelectric substance, wherein a thickness of the piezoelectric substance is within a range of 0.05 μm to 20 μm.