The invention provides a testing-tube operation system convenient for individual taking and placement. The testing-tube operation system comprises a clamping device, a transmission device and a flatly taking device, wherein the transmission device comprises a control box, a transmission rod, a forward and reversal motor and a time relay; the time relay is connected with the forward and reversal motor by a circuit; an output shaft of the forward and reversal motor is connected with an input shaft of the control box in a driving manner; an output shaft of the control box is a transmission rod; the far end of the transmission rod is provided with a gear structure which is meshed with a gear at the lower section of a driving rod in the clamping device; the driving rod in the clamping device is of a three-section structure including an upper section, a middle section and a lower section, wherein a lead screw is arranged at the upper section, a nut on the lead screw is sheathed into a horizontal gear of an operation wheel group, a gear is horizontally arranged on a lower-section rod and is meshed with a gear at the end part of the transmission rod, the middle section and the upper section are connected by a sheathing bearing, and the middle section and the lower section are connected by a reversal gear group; and the flatly taking device is arranged above the clamping device.