With the constant change of technologies, new internet technologies are emerging. In this case we are talking about Internet of things and new 5g mobile network. This is the reason for selecting this subject for this work. Study what the Internet of Things and 5G mobile network are and how 5g mobile network affect Internet of Things. Internet of things is the newest technology and is the equal value as Internet. It's defined as Internet structure which contains a huge amount of addressable objects with their virtual data. All objects around man are connected to the Internet and communicate with each other. In the Internet of Things, devices have different hardware and software capabilities. The Internet od things and cloud computing are mutually dependent. Internet od Things supports virtually unlimated possibilities and recources to compensate for tehnological limitations. The Internet od Things dana-centric network is called a dana pruduction hub in which a large amount of raw data is produced. RFID ( Radio Frequency IDentification) is a system that uses radio waves to collect information to indetify objects or persons. It is use din hundreds of different examples. NFC is a short-range wireless tehnology derived from RFID. The 5G mobile network can make a significant contribution to the Internet of Things by connecting a billion smart devices while creating a huge system for communication and data sharing. The key features of 5G are transfer speed, high reliability, large network capacity, strong security.