Co-controlling system and method of cloud classroom on same screen

The invention relates to a co-controlling system and method of cloud classroom on the same screen. Cloud table top display equipment is used for generating a long-distance dialogue ID after receiving a first access instruction, and sending a first cloud table top access instruction and the long-distance dialogue ID according to the first access instruction; a virtual machine server is used for receiving the first cloud table top access instruction and the long-distance dialogue ID, sending cloud table top according to the first cloud table top access instruction, sending the long-distance dialogue ID to auxiliary table top display equipment after receiving a second cloud table top access instruction, and sending auxiliary table top through a communication channel after receiving an auxiliary table top access instruction; the auxiliary table top display equipment is used for receiving a second access instruction, sending a second cloud table top access instruction according to the second access instruction, es