The invention discloses a shared accompanying bed and a commercial mode of the shared accompanying bed. The shared accompanying bed comprises a main bed, a secondary bed arranged below the main bed, aconnector for connecting the main bed with the secondary bed, and an electronic lock arranged on the main bed; a commercial mode of the shared accompanying bed comprises the above shared accompanyingbed, a server, and a user terminal; a control terminal is arranged at the shared accompanying bed; and the step for executing the commercial mode comprises the following steps: user registration, usepermission acquisition; a user sends an instruction to the server, and starts the control terminal on the shared accompanying bed, and performs service charging; the user returns the shared accompanying bed, automatically stops charging and performing fee deduction. Compared with the prior art, the space use is reasonable, redundant activity space cannot be occupied, the use is quiet, stable andcomfortable, and the bedside table use cannot be influenced; the shared accompanying bed is provided with the electronic lock; and the commercial mode has the advantages of being reasonable in charging, fast in renting and returning, and easy to manage.