An assembling process of a multi-lens camera module , the assembling process comprising steps of: (a) providing a casing , a first circuit board , a first photosensitive element , a first lens module , a second circuit board , a second photosensitive element and a second lens module , wherein the first lens module comprises a first lens element and a first lens holder , the first lens element is supported by the first lens holder , the second lens module comprises a second lens element and a second lens holder , and the second lens element is supported by the second lens holder ; (b) installing the first photosensitive element and the first lens module on the first circuit board , and fixing the first circuit board on the casing ; (c) installing the second photosensitive element and the second lens module on the second circuit board , and coating a bottom glue on a lower connection part of the second lens holder ; (d) penetrating the second lens module through a receiving opening of the casing , and adhering the lower connection part of the second lens holder onto the casing through the bottom glue; (e) performing an optical axis parallel adjustment process, so that a second optical axis of the second lens element is adjusted to be in parallel with a first optical axis of the first lens element ; (f) coating a top glue on an upper connection part of the second lens holder , so that the upper connection part of the second lens holder is adhered onto the casing through the top glue; (g) pre-curing the top glue, so that the second lens module is adhered onto the casing through a pre-cured bonding strength of the top glue, wherein the second optical axis is in parallel with the first optical axis; and (h) baking the multi-lens camera module , so that the top glue and the bottom glue are completely cured. (a) providing a casing , a first circuit board , a first photosensitive element , a first lens module , a second circuit board , a second photosensitive element and a second lens module , wherein the first lens module comprises a first lens element and a first lens holder , the first lens element is supported by the first lens holder , the second lens module comprises a second lens element and a second lens holder , and the second lens element is supported by the second lens holder ; (b) installing the first photosensitive element and the first lens module on the first circuit board , and fixing the first circuit board on the casing ; (c) installing the second photosensitive element and the second lens module on the second circuit board , and coating a bottom glue on a lower connection part of the second lens holder ; (d) penetrating the second lens module through a receiving opening of the casing , and adhering the lower connection part of the second lens holder onto the casing through the bottom glue; (e) performing an optical axis parallel adjustment process, so that a second optical axis of the second lens element is adjusted to be in parallel with a first optical axis of the first lens element ; (f) coating a top glue on an upper connection part of the second lens holder , so that the upper connection part of the second lens holder is adhered onto the casing through the top glue; (g) pre-curing the top glue, so that the second lens module is adhered onto the casing through a pre-cured bonding strength of the top glue, wherein the second optical axis is in parallel with the first optical axis; and (h) baking the multi-lens camera module , so that the top glue and the bottom glue are completely cured. <EOS>