magento 2: I want display a image in the module template phtml file

Yes you can store images in your module web directories depending on the area of your templates. The path is: Vendor/Module/view/{frontend|adminhtml}/web/images/

Then in your *.phtml files you can display the image:

<img src="<?php echo $this->getViewFileUrl('Vendor_Module::images/image.png'); ?>" />