According to an embodiment of the present invention, a method for providing information on articles for sale, implemented on a computer, comprises a step of transmitting a text message to a seller terminal upon receiving identification data from a seller and information related to an article for sale; a step of receiving a request for entering an information providing service as uniform resource locator (URL) information included in the text message is selected; a step of providing offering information corresponding to the seller when entering the information providing service by responding to reception of the entering request; a step of receiving whether it is possible to trade the article for sale from the seller when the information matches; a step of determining whether the identification data on the seller and the information on the article for sale match based on a certified copy of a register regarding the article for sale when receiving the possibility to trade the article for sale; and a step of registering the article for sale in the information providing service to provide the information related to the article for sale.(901) Request for transaction of an offering(902) Request for registration of an offering(903) Request for verification of an offering(904) Request for personal authentication(905) Transmit authentication LMS(906) Login(907) Conversion into a real name(908) Check member information(909) Fail to authenticate(910) Seller(911) Expose offering information(912) Fail to authenticate(913) Read a certified copy of a register(914) Expose an offering(920) Real estate agent(930) Information company(940) Verification center(950) Offering information providing server(AA) Collect personal information (a name and numbers of a cellular phone) and collect offering information(BB) Member with a non-real name(CC) Success in Log-in(DD) Unconfirmed(E1, E2) Transmit a fail value(E3) Transmit a success value(FF) Reject an approval(GG) Approval(HH) ConfirmedCOPYRIGHT KIPO 2017