Image sensor lens assembly and sensing module having open configuration

An image sensor lens assembly and a sensing module having an open configuration are provided. The sensing module includes an image sensor chip, a filtering sheet, a supporting layer sandwiched between the image sensor chip and the filtering sheet, a circuit board having a thru-hole, and an adhering layer. The supporting layer is not enclosed and has an internal communication opening. The image sensor chip is fixed onto the circuit board, and the filtering sheet is partially arranged in the thru-hole so as to jointly form a ring-shaped gap there-between that is in spatial communication with the internal communication opening. The adhering layer is formed in a part of the ring-shaped gap so as to adhere the filtering sheet onto the circuit board and has an external communication opening. The internal communication opening, the ring-shaped gap, and the external communication opening are jointly formed as a dust-proof channel.