Abstract: A packaging machine of products in respective packages or envelopes includes at least one central control unit and a plurality of functional groups suitable to operate synergetically and in synchronism in order to obtain the desired product packaging result. The functional groups include at least one feeding group of the products, at least one feeding and/or forming group of the packages in which the products must be inserted, at least one insertion group of the products in the respective packages, at least one outlet group of the packages containing the respective products. Each of the groups include respective operating stations suitable for carrying out a specific operation on the products, on the packages or on the combination of same, in order to obtain a specific result in terms of packaging of the products.