By means of the present study the different concepts will be analyzed, as well as, clauses, characteristics and juridical nature of the contract of Know How or of provision of technical knowledge, understood like: that juridical business which object is the transfer or transmission of the right on a technical knowledge reserved, realized by your holder in favour of another part, in exchange for a consideration; the possibility of transfer being highlighted so much, as well as of sale - modality discussed in the doctrine - of the Know How. All this, with purposes of establishing the limits for your positivizaci-n in the Juridical system, for which, there is annexed a project of law, which is constructed by the developed in the present research. © 2009 Universidad de Talca, Facultad de Ciencias Jurídicas y Sociales.