An image ice detector, comprising: an image acquiring system (1-A) and an image processing system (2-A), wherein the image acquiring system (1-A) is configured to acquire images of a surface of an object, and the image processing system (2-A) is configured to analyze the acquired images to identify differences between image characteristics included in different icing images, and accurately identify, according to these differences, ice conditions of the surface of the object, wherein the ice conditions comprise types of ice, ice thickness and ice area; wherein the image processing system (2-A) comprises: an ice early-warning unit for judging whether ice is formed on the surface of the object; an ice analyzing unit including a marking module, a calculating module and a judging module, wherein the marking module is configured to mark the image with several parameters related to ice conditions, the calculating module is configured to calculate the marked parameters to obtain characteristic factors of said image, and said judging module is configured to judge and obtain said ice conditions of the surface of the object based on the characteristic factors; and an ice condition database comprising characteristic data corresponding to various ice conditions, for comparison with the characteristic factors; wherein the icing analyzing unit operates concurrently with the ice early-warning unit, and can make qualitative and quantitative analysis of specific ice conditions of the surface of the object; wherein the type of ice is determined and the thickness of ice is studied; wherein the type of ice is determined by using a variance of the pixel brightness value as the characteristic factor for judgment, and the thickness of ice is studied with use of a sum of brightness values of all pixel points as a final characteristic factor. the image acquiring system (1-A) is configured to acquire images of a surface of an object, and the image processing system (2-A) is configured to analyze the acquired images to identify differences between image characteristics included in different icing images, and accurately identify, according to these differences, ice conditions of the surface of the object, wherein the ice conditions comprise types of ice, ice thickness and ice area; wherein the image processing system (2-A) comprises: an ice early-warning unit for judging whether ice is formed on the surface of the object; an ice analyzing unit including a marking module, a calculating module and a judging module, wherein the marking module is configured to mark the image with several parameters related to ice conditions, the calculating module is configured to calculate the marked parameters to obtain characteristic factors of said image, and said judging module is configured to judge and obtain said ice conditions of the surface of the object based on the characteristic factors; and an ice condition database comprising characteristic data corresponding to various ice conditions, for comparison with the characteristic factors; an ice early-warning unit for judging whether ice is formed on the surface of the object; an ice analyzing unit including a marking module, a calculating module and a judging module, wherein the marking module is configured to mark the image with several parameters related to ice conditions, the calculating module is configured to calculate the marked parameters to obtain characteristic factors of said image, and said judging module is configured to judge and obtain said ice conditions of the surface of the object based on the characteristic factors; and an ice condition database comprising characteristic data corresponding to various ice conditions, for comparison with the characteristic factors; wherein the icing analyzing unit operates concurrently with the ice early-warning unit, and can make qualitative and quantitative analysis of specific ice conditions of the surface of the object; wherein the type of ice is determined and the thickness of ice is studied; wherein the type of ice is determined by using a variance of the pixel brightness value as the characteristic factor for judgment, and the thickness of ice is studied with use of a sum of brightness values of all pixel points as a final characteristic factor.