Video coding method and device, terminal equipment and storage medium

The embodiment of the invention discloses a video coding method and device, terminal equipment and a storage medium. The method comprises the following steps: performing block division processing on a to-be-coded unit based on a determined first division mode to obtain N sub-blocks; and traversing and selecting one sub-block from the N sub-blocks as a sub-block N1i, and determining the sub-block division depth of the sub-block N1i in the first coding tree. And determining a first number of the sub-blocks N1i in the first division direction and a second number of the sub-blocks N1i in the second division direction within the sub-block division depth of the sub-blocks N1i, and obtaining the first number of each sub-block in the first division direction and the second number of each sub-block in the second division direction until each sub-block in the N sub-blocks is traversed. And determining the division direction of the second division mode according to the first number of each sub-block in the first divisio