Container anti-toppling device during sailing of container ship

The invention provides a container anti-toppling device during sailing of a container ship, the device comprises at least two anti-toppling mechanisms which are respectively fixed on decks on two sides of a ship side, a container fixing mechanism, and at least two directional wheel fixing mechanisms; each anti-toppling mechanism comprises a traction assembly and an early warning assembly; the traction assembly is connected with the early warning assembly through a steel wire rope. The container fixing mechanism comprises at least two steel wire rope clamping grooves and a plurality of bridge lock assemblies; each bridge lock assembly is fixedly connected with two adjacent rows of container stacks; the steel wire rope clamping groove is fixedly formed in the bridge lock assembly. The directional wheel fixing mechanisms are symmetrically fixed in corner fitting holes, which are not provided with bridge lock assemblies, of top-layer containers close to the two sides of a ship side respectively; the steel wire ro