The invention discloses an architectural decoration configuration device and method based on a computer. The invention provides a technical scheme capable of achieving one-stop solving for a computer information system and a website thereof for architectural decoration design, construction, project management, material purchase and customer service. The decoration configuration device comprises an input decoration style configuration device, a decoration function configuration device, a decoration project list configuration device, a project monitoring device, a decorative material matching device, a customer relationship management device, an information database of these devices, and an information input-output device. The architectural decoration configuration device particularly has the following technical features: the decoration style configuration device, the decoration function configuration device, the decoration project list configuration device, the project monitoring device, the decorative material matching device, and the customer relationship management device are correlative. The invention may enable every decoration and fitment participant to solve decoration basic knowledge popularization problems by virtue of the computer information system or / and the website thereof set up by the technical scheme, and perfectly combine the basic knowledge with commercial activities.