A diagnosis device for providing diagnosis of cancer and infectious diseases by means of nucleic acids biomarkers in samples like blood, tissue, saliva, urine, wherein said diagnostic device includes the following elements that perform the extraction, sample preparation and diagnosis of cancer and infectious diseases with nucleic acids; a) a chip comprising: - an extraction and hybridization channel, where the nucleic acids existing in the sample which is to be measured are precipitated with glycoblue and where said nucleic acids, are washed by means of washing liquids and where extraction and purification of nucleic acids are provided; - a lock channel positioned in the vicinity of the extraction and hybridization channel and embodied such that liquid flow is provided and which provides removal of the liquids from channel; - a liquid absorption channel positioned in the vicinity of said lock channel and which absorbs the liquid in the lock channel; - a diagnosis and determination channel and which realizes measurement by means of graphene modified pencil lead electrodes where the extraction and hybridization channel is positioned in the other vicinity; wherein the chip is made of material comprising cellulose; b) a measurement part in which the chip is inserted and contains the elements that perform the necessary measurement operations; said measurement part comprises a chip housing embodied such that the chip is placed therein, a heat panel positioned in the vicinity of said chip housing and which provides heat to the chip, a slidable magnet positioned in the vicinity of said heat panel and under the chip housing, a keypad where the start and stop commands are given to the system, a screen where the measurement and analysis results can be monitored and an energy inlet which provides energy input for the operation of the diagnosis device; wherein the liquid absorption channel, the extraction and hybridization channel, the lock channel and the diagnosis and determination channel arc channels integrated to each other and embodied in a three-dimensional from onto surface in a single step thanks to the usage of embossing printer. a) a chip comprising: - an extraction and hybridization channel, where the nucleic acids existing in the sample which is to be measured are precipitated with glycoblue and where said nucleic acids, are washed by means of washing liquids and where extraction and purification of nucleic acids are provided; - a lock channel positioned in the vicinity of the extraction and hybridization channel and embodied such that liquid flow is provided and which provides removal of the liquids from channel; - a liquid absorption channel positioned in the vicinity of said lock channel and which absorbs the liquid in the lock channel; - a diagnosis and determination channel and which realizes measurement by means of graphene modified pencil lead electrodes where the extraction and hybridization channel is positioned in the other vicinity; wherein the chip is made of material comprising cellulose; - an extraction and hybridization channel, where the nucleic acids existing in the sample which is to be measured are precipitated with glycoblue and where said nucleic acids, are washed by means of washing liquids and where extraction and purification of nucleic acids are provided; - a lock channel positioned in the vicinity of the extraction and hybridization channel and embodied such that liquid flow is provided and which provides removal of the liquids from channel; - a liquid absorption channel positioned in the vicinity of said lock channel and which absorbs the liquid in the lock channel; - a diagnosis and determination channel and which realizes measurement by means of graphene modified pencil lead electrodes where the extraction and hybridization channel is positioned in the other vicinity; b) a measurement part in which the chip is inserted and contains the elements that perform the necessary measurement operations; said measurement part comprises a chip housing embodied such that the chip is placed therein, a heat panel positioned in the vicinity of said chip housing and which provides heat to the chip, a slidable magnet positioned in the vicinity of said heat panel and under the chip housing, a keypad where the start and stop commands are given to the system, a screen where the measurement and analysis results can be monitored and an energy inlet which provides energy input for the operation of the diagnosis device; wherein the liquid absorption channel, the extraction and hybridization channel, the lock channel and the diagnosis and determination channel arc channels integrated to each other and embodied in a three-dimensional from onto surface in a single step thanks to the usage of embossing printer.