Present experimental equipment of nuclear research and school working-places in Slovakia do not represent world technology standards or the importance of nuclear energy for our country. This paper describes the past and the present situations in the field of training reactor construction and explains the need for such an equipment in Slovakia. The natural sources of energy in Slovakia are limited. There are practically no sources of gas, oil and black coal and there are only a few limited sources of low quality lignite, with deep seams and the associated high costs with mining. The exploitation of the hydro-potential of the Slovak Republic is relatively high. Therefore, a decision to develop nuclear power in our country at the end of the 1950´s was made. Today´s 4 units of VVER-440 reactor produce 53 % of all electricity in Slovakia. The total amount of electricity generated by those units up to the end of 1993 was 133 TWh. The bulk of the Slovak Electric Power System is created by NPP V-1 and V-2 located at Jaslovské Bohunice. A total of 4 units were commissioned in 1979, 1980, 1984 and 1985. The next 4 units of VVER-440 are being built at Mochovce. Experimental equipment such as an experimental reactor in the field of nuclear energy was concentrated within the Czechoslovak Republic in Prague, Řež at Prague and Pilsen for a total 4 training and experimental reactors. After the separation of the Czech and Slovak Republics in January 1993, no experimental basis and equipment were left in Slovakia. The article also lists our previous activities concerning the attempt to build a training reactor in Slovakia. The last step is connected with a reconstruction of Critical set SUR-100 delivered from Germany. This equipment could partially compensate the training reactor in the education process.