1. A monitoring device with independent heat dissipation for an image capture component, comprising: a body module, which further includes: a processing circuit board for receiving an image and processing the image; and a body case for heat dissipation of the processing circuit and having a body accommodating space in which the processing circuit board is disposed inside of the body module; and an image capture module, which is fixed on outside of the body module to form a heat dissipating space between the body module and the image capture module, further includes: an image capture component for capturing the image; a heat dissipating base having a first surface and a second surface opposite to each other, wherein the first surface is formed with an accommodating space for fixing the image capture component therein, the second surface has a plurality of fins for dissipating heat from the image capture component to the heat dissipating space for natural convection, and the heat dissipating base has a through groove going through the first surface and the second surface for the image capture component to electrically connect to the processing circuit board and providing the image to the processing circuit board; a heat dissipating mask having an engaging part, a fixing part, a lens opening, and a lens fixing part, wherein the engaging part extends from both ends of the heat dissipating mask for fixing the heat dissipating base onto the heat dissipating mask, the center of the image capture component and the center of the lens opening are on a same axial line when the heat dissipating base is fixed on the heat dissipating mask, the heat dissipating mask and the image capture component are in direct contact for heat dissipation of the image capture component, and the image capture module is fixed on the body case of the body module via the fixing part to form the heat dissipating space between the heat dissipating base of the image capture module and the body case of the body module for natural convection; and an optical lens fixed on the lens fixing part.