To provide an ALC(aerated light-weight concreat) panel supply method which can optimize the whole supply system and then improve cash flow efficiency by reducing the supply cost of an ALC panel, speeding up response, and grasping accurate customer's demands more.

This ALC panel supply method is characterized by that a trader which receives an order directly from an orderer of ALC panel construction and produces and constructs an ALC panel obtains design data from the orderer through a computer network, generates ALC panel allocation data according to the design data, obtains ALC panel specification data according to the ALC panel allocation data, and produces the ALC panel with necessary specifications according to the ALC panel specification data. It is suitable that the trader electronically settles the money regarding the ALC panel with the orderer.