Heinrich LXVII was born at Schleiz, Reuss, younger surviving son of Heinrich XLII, Prince Reuss of Schleiz (1752–1818), (son of Count Heinrich XII Reuss of Schleiz, and Countess Christine of Erbach-Schönberg) and his wife, Princess Caroline of Hohenlohe-Kirchberg (1761–1849), (daughter of Christian Friedrich Karl, Prince of Hohenlohe-Kirchberg and Princess Louise Charlotte of Hohenlohe-Langenburg).

As his brother Heinrich LXII died unmarried and childless, at his death in 1854 he inherited the throne of the Principality.

Under his government appointed Minister Eduard Heinrich-Crispendorf to make funds in 1856 to amend the constitution in the reactionary sense by the parliament.

He led after the transfer took place in 1848 the residence of Schleiz to Gera in the years 1859 to 1863 and rebuilt the Osterstein Castle.

Prince Heinrich LXVII founded in October 1857 the Golden and Silver Merit, as a "Civil Cross of Honour".