The invention discloses a cooking utensil and a control method, a system and a server thereof. The method comprises the following steps of: receiving image data sent by a cooking appliance, The imagedata comprises images of a plurality of cooking objects stored in a pot of the cooking appliance. The method includes the steps of acquiring the image data through an image acquisition module arrangedon the cooking appliance; identifying image data to determine a plurality of cooking objects; judging a reference cooking object satisfying a preset condition from a plurality of cooking objects, returning the first cooking parameter corresponding to the reference cooking object to the cooking appliance so that the cooking appliance performs a cooking operation according to the first cooking parameter. The invention solves the technical problems that the process of the control method of the cooking appliance in the prior art is complex and the cooking effect is poor.