A translation laminated cover plate laying mechanism comprises a plurality of cover plates for covering an opening, a pair of guide rails arranged on two sides of the opening, a cover plate translation driving device for driving the cover plates to reciprocate along the pair of guide rails, a supporting disk for supporting the cover plates, a supporting disk lifting mechanism, a power input mechanism, a first speed reducer, an intermittent mechanism, a second speed reducer and a third speed reducer. Two adjacent cover plates are connected in detachable mode or through a flexible member, the input end of the first speed reducer is connected with the power output end of the power input mechanism, the power input end of the intermittent mechanism is connected with the output end of the first speed reducer, two power output ends are respectively connected with the input ends of the second speed reducer and the third speed reducer and output power to the second speed reducer and the third speed reducer alternately, the output end of the second speed reducer is in transmission connection with the cover plate translation driving device, and the output end of the third speed reducer is in transmission connection with the supporting disk lifting mechanism. The translation laminated cover plate laying mechanism can lay and pack up the cover plates rapidly through manual mode, and can meet loading requirements.