This thesis deals with the management and traffic of Polish Baltic container ports and terminals. Namely, containerization is a process started after the Second World War where seaports adapt to the handling of container cargo, which enabled more efficient port operations. In terms of the European port system, container traffic has experienced great growth in the last two decades. Container traffic takes place through several port regions that are connected to their hinterlands. Delivery and shipping is done by feeder ships by sea, rivers, railways and roads. Due to its geostrategic positioning within the European Eastern Plain, Poland represents the gateway to the world of non-coastal states of Central Europe. One of the key factors in Poland's economic upswing is investment in seaports, four of which are intended for container cargo, of which Gdansk and Gdynia are the largest Baltic ports. Poland has developed a wide network of inland container terminals, transport hubs and good trade relations with its neighbors and the Far East, which allows it to grow further. In addition to the above, there are also negative influences on Poland, starting with the NSR initiative and influences such as: Covid-19, the development of the potential of the northern Adriatic and the impact of the war in Ukraine. Taking all of the above into account, it can be said that Poland has exceptional potential, but a possible brake on its progress is precisely the socioeconomic instability of neighboring countries (the hinterland), while the transport connection with them needs to have better solutions.