A method for adjusting parameter(s) of a surgical light comprising: acquiring an operation field image signal or a three-dimensional signal of an operation field; determining surgery information according to the operation field image signal or the three-dimensional signal of the operation field, the surgery information comprising a surgery type or a surgery stage; and determining a parameter adjustment strategy for the surgical light according to the surgery information, and adjusting the parameter(s) of the surgical light according to the parameter adjustment strategy; wherein determining surgery information according to the operation field image signal or the three-dimensional signal of the operation field comprises: obtaining feature information in an operation field image or the three-dimensional signal according to the current operation field image signal or the current three-dimensional signal of the operation field; and determining, according to the feature information, the surgery information corresponding to the feature information; and wherein said obtaining feature information in an operation field image or the three-dimensional signal according to the operation field image signal or the three-dimensional signal of the operation field, and determining, according to the feature information, the surgery information corresponding to the feature information comprises: obtaining depth information of an incision in the operation field image or the three-dimensional signal according to the operation field image signal or the three-dimensional signal of the operation field; characterised in that the method further comprises: calculating a change value of the depth information of the incision; and determining, according to the change value of the depth information of the incision, a surgery stage corresponding to the change value of the depth information of the incision, the surgery stage comprising an early surgery period, a middle surgery period, or a late surgery period. acquiring an operation field image signal or a three-dimensional signal of an operation field; determining surgery information according to the operation field image signal or the three-dimensional signal of the operation field, the surgery information comprising a surgery type or a surgery stage; and determining a parameter adjustment strategy for the surgical light according to the surgery information, and adjusting the parameter(s) of the surgical light according to the parameter adjustment strategy; wherein determining surgery information according to the operation field image signal or the three-dimensional signal of the operation field comprises: obtaining feature information in an operation field image or the three-dimensional signal according to the current operation field image signal or the current three-dimensional signal of the operation field; and determining, according to the feature information, the surgery information corresponding to the feature information; and wherein said obtaining feature information in an operation field image or the three-dimensional signal according to the operation field image signal or the three-dimensional signal of the operation field, and determining, according to the feature information, the surgery information corresponding to the feature information comprises: obtaining depth information of an incision in the operation field image or the three-dimensional signal according to the operation field image signal or the three-dimensional signal of the operation field; characterised in that the method further comprises: calculating a change value of the depth information of the incision; and determining, according to the change value of the depth information of the incision, a surgery stage corresponding to the change value of the depth information of the incision, the surgery stage comprising an early surgery period, a middle surgery period, or a late surgery period. obtaining feature information in an operation field image or the three-dimensional signal according to the current operation field image signal or the current three-dimensional signal of the operation field; and determining, according to the feature information, the surgery information corresponding to the feature information; and wherein said obtaining feature information in an operation field image or the three-dimensional signal according to the operation field image signal or the three-dimensional signal of the operation field, and determining, according to the feature information, the surgery information corresponding to the feature information comprises: obtaining depth information of an incision in the operation field image or the three-dimensional signal according to the operation field image signal or the three-dimensional signal of the operation field; characterised in that the method further comprises: calculating a change value of the depth information of the incision; and determining, according to the change value of the depth information of the incision, a surgery stage corresponding to the change value of the depth information of the incision, the surgery stage comprising an early surgery period, a middle surgery period, or a late surgery period. calculating a change value of the depth information of the incision; and determining, according to the change value of the depth information of the incision, a surgery stage corresponding to the change value of the depth information of the incision, the surgery stage comprising an early surgery period, a middle surgery period, or a late surgery period.