The Museum preserves the constructive context of the archaeological zone not only for being made of adobe and clay, but also because the language of the forms, symbols and color maintain the constructive philosophy of those who built these constructions more than 1000 years ago.

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The interior of the Museum is distributed in a thematic sequence that initially shows the geographical scope, the first researchers who have intervened over the last 100 years.

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The Site Museum explains the meaning of one of the most important oral traditions of Pre-Columbian America such as "the Legend of Ñaymlap". This story that speaks of the emblematic presence of a caudillo known by the name of Ñaymlap who arrives on the shores of the current area of ​​the San José district with his entourage and orders the construction of a temple that he calls “Chot” where he places an idol named Yampallec , from which the growth of the dynasty of this character occurs, who appears in the story as a man of great value who with his death becomes a bird and becomes immortal.

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The other part of the Museum is oriented to show the result of the latest archaeological investigations at the site with the surprising discovery of the "Priestess Lambayeque de Chornancap", an elite woman who lived between the years 1250 to 1350AD.